Do I need to reinstall Windows after upgrading almost my entire PC?
Posted by Majestic-Tale7907@reddit | buildapc | View on Reddit | 127 comments
I’m upgrading from:
Intel i7-8700K
RX 5700 XT
DDR4 RAM
To:
Ryzen 7 9800X3D
RTX 5070 Ti
ASUS TUF B850 motherboard
DDR5 RAM
I’m keeping the same SSD with Windows already installed on it.
Can I just boot into Windows normally, or is it better to do a completely fresh Windows install?
Cpt_Sandur@reddit
A good rule is to re-install windows every time you change the motherboard. So yes.
Shap6@reddit
No reason not to just try it first though. People jump too quickly to reinstalling their OS IMO before they even know if they need to
Milk-DroP-PluGin@reddit
I was in a very similar situation and I kept BDSOing seemingly at random. He'll have conflicting driver issues and the system will under perform as well. Reinstalling is 100% the way to go.
BlG_O@reddit
I learned the hard way. Switch motherboard and CPU, had a million things popping up saying "outdated drivers" computer was slow asf. Had to do a clean wipe and just reinstalled my videogames lol. Shit is butter now
VladTepesDraculea@reddit
Why not updating the drivers? Motherboards come with driver packages or at least list them in their support page if Windows doesn't pick on them automatically.
BlG_O@reddit
It was the driver's for the previous motherboard it was conflicting with the motherboard I have installed
PogTuber@reddit
Yeah one tactic that can probably help is to uninstall the chipset (motherboard) drivers first before installing new motherboard and chipset drivers.
BlG_O@reddit
True but I just decided to get a fresh install anyways just so everything runs smoother
PogTuber@reddit
Yeah I'm about to do the same thing since it's been so long
PogTuber@reddit
Except for all of us that have had zero problems through multiple migrations. I'm on the same install through 2 motherboards, 3 cpus, and several SSD migrations.
There's zero risk. If he gets BSODs, sure go ahead and reinstall windows entirely.
Zatchillac@reddit
I thought I was alone. Built my first in 2016 and have moved that install through 3 SSD's on 3 different CPUs/motherboards from 2 different platforms. All I've really done was just uninstall drivers to make room for new ones. No issues in 10 years 🤞🏻
mald55@reddit
Same here I went through like 4 motherboards, 5 CPUs, same amount of RAM, upgraded from HDDs to SSDs and NVME and never reinstalled. I actually upgraded from Windows 7 to 10 to 11 lmao. Mind you I ended up reinstalling Windows 11 a couple of years ago since I wanted the fresh install feel, but I didn’t have to.
PogTuber@reddit
I did the same Windows 7 to Windows 10, though I did that before the motherboard changes
VladTepesDraculea@reddit
Some people here treat their installation like it's still Windows XP or something. The only times I had to reinstall Windows on the last decade at least is when the main drive dies or deformats. And that if I don't first clone the drive to another drive first.
Also as part of my maintenance I create restore points before upgrade.
edgemaster191@reddit
Last time I did this I didn’t have any issues. I did reinstall like six months later but it’s because I broke something lol
Just take your time to uninstall any old drivers, run DDU wipe out the old gpu drivers, grab the latest drivers for your new stuff and go to town!
If it breaks then reinstall.
Also make sure anything important is backed up, that goes without saying.
VaultBoy636@reddit
I swapped 4 different motherboards since my last reinstall and everything is fine. Maybe because they were all intel so the drivers were more compatible with each other than intel->amd or vice versa.
Shap6@reddit
Why not just try it though. What’s there to lose?
Milk-DroP-PluGin@reddit
Time, since this is not a "what if" kind of situation, but a "you have to" situation. Building a new system while using the old OS is like having your ripped nephew wear his kid sister's clothing. The new build won't find it funny 🤣
Shap6@reddit
It is a what if though leaning towards “probably don’t have to” from my decades of anecdotal experience. People are severely underestimating how often it just works or overestimating how big a deal having some old leftover unused drivers still on the system is.
Milk-DroP-PluGin@reddit
My brother/sister in Christ, I've also upgraded to AM5 just like he did, to a similar motherboard and ram just like he did... There is no doubt in my mind that he'll have similar issue.
Let's pretend for example that the ending of game of thrones was good for a second and that he won't have massive issues. The system will still underperform due to conflicting drivers and since we're in the realm of fantasy he'll fix all of them by being diligent and uninstalling everything unnecessary while installing all the new software.
At the end of the day he'd still end up using time to install the new software, use extra time to uninstall old software that could've been used to reinstall the OS and his system would still be bloated, unless again they decide to spend a lot of time tracking down all the remnants of his old parts which is virtually impossible.
Worse than anything, they'd have to pretend GoT finale was good...
Shap6@reddit
this is not a given. i'm not sure why you think it is. conflicting drivers existing on a system is fine. windows is smart enough to use the correct ones 9 times out of 10. why wouldnt you just try it first? if there are no issues great, if there are thats fine too since they were already ready to reinstall. you literally lose nothing by trying it first. thats all my point is
steven_cornthrob@reddit
Homie, you've spent more time arguing your point than it takes to just reinstall windows.
Petronik@reddit
It will work… He just needs to install the correct drivers for his motherboard, and they will take precedence. Windows should also install the correct drivers… but I would just do a fresh install of windows. It’s basically a new PC, so he should treat it as such.. No need to have that extra spaced be wasted by having things from his previous build on his drive.
bromoloptaleina@reddit
Blue death screen offing
Milk-DroP-PluGin@reddit
I'm LOLing right now 😂
Either-Cry5555@reddit
I mean games should always be installed on a separate drive, when I fry my system and start over, it takes like 15-20 minutes to install windows and updates, apps, drivers.
GeneralLeeCurious@reddit
Wow… consider me confused my the responses as well. I’ve transplanted a windows 11 ssd to completely new hardware three times and not had an issue.
Caveat: it was always Intel processors and Nvidia GPUs.
People constantly underestimate the robustness of Windows because it’s so easy to criticize minor surface level stuff.
It doesn’t hurt to try. Just make sure to uninstall old drivers and install new drivers. If it doesn’t work, do the full install. If it does work, you’ve saved HOURS of reinstalls (depending on how complex your software investment is).
CrustyBatchOfNature@reddit
That and the fact that at one time Windows would definitely not handle changing motherboard chipsets well at all. I usually just uninstall all drivers I can before shutting down but you could also do a Reset PC on Windows and choose Keep files.
PogTuber@reddit
With Windows 10 you don't even really need to reset PC. If the GPU is changing then sure, but otherwise it will automatically detect the chipset change. It's crazy good nowadays, it used to be pointless to try to do it on older versions.
CrustyBatchOfNature@reddit
I usually delete the GPU and a few other drivers only because Windows won't necessarily remove them after the reboot and install of new drivers. Then I go in and uninstall/clean up others after everything is working. I know for a fact that going from a 4790K to a 2600X and changing my GPU at the same time on Windows 10 worked fine but left a ton of greyed out and hidden stuff in Device Manager.
PogTuber@reddit
Yeah I did the same thing with 4790K to 5600X. Uninstalled drivers that I could and sorta got close to a "basic" Windows install.
You do get some leftover cruft. I still have Windows update giving me Intel chipset drivers as optional recommended downloads lol
Stratostheory@reddit
Literally just transplanted my windows 11 ssd on Sunday AMD cpu + Nvidia gpu.
I'm still intending to do a fresh install of windows when my schedule allows me this weekend, but I've had no issues.
Something funky happened with the A2 slot on my old board ans PC wouldn't post with it populated. When I finally pulled it apart to swap boards the solder looked like shit.
BannedAccount001@reddit
I have transitioned from Intel to AMD, through 3 SSDs and 3 GPUs. Not once was reinstalling ever required.
ImYourDade@reddit
I agree. I've reinstalled windows for other most likely unrelated issues. But every time I've upgraded anything I just leave it be until actual issues potentiallly caused by os come up
OutrageousInvite3949@reddit
I mean you’re not wrong…there’s no reason not to try, it can’t hurt..:but it will likely hurt performance considering he’s going from amd to intel and that’s a huge change for the os.
Cpt_Sandur@reddit
He is literally changing every part. gtfo 😂
PogTuber@reddit
Stop talking. I've gone through two motherboards and 3 cpus and several SSD migrations on the same Windows install.
jblaze_39@reddit
RAM doesn't require a driver. Neither does CPU. So I don't get your point. Windows could install an older motherboard driver upon boot, and then you just have to install the latest version yourself, and then the GPU driver. Why re-install windows?
fakeaccount572@reddit
Cause it should be done anyway to refresh and have a nice clean install
jblaze_39@reddit
Not necessarily. That depends on how long ago they re-installed windows last time. If never, then sure...but that has nothing to do with changing hardware, and I don't see why there would be any difference in how it runs
Shap6@reddit
I’ve done it at had everything work fine. Many times.
WizardMoose@reddit
But what if everything seems fine, when really you're losing out on performance if you just reinstall the OS? That's why it's recommended. It's not just for obvious issues
PogTuber@reddit
What performance? Registry cruft is irrelevant with how fast SSDs are. Chipset and GPU drivers will be replaced. You could eke out a couple milliseconds getting rid of stuff you don't use but "stuff you don't use" is inevitably going to be coming back again anyways.
CrustyBatchOfNature@reddit
Windows is a lot better at this than it used to be. Generally the biggest issues are when it decides a device is not different than it was before and tries to use incorrect drivers or the ton of greyed out things still installed. I usually delete all drivers I can before shutting down then make sure to clean up the rest once I start installing proper drivers.
isotope123@reddit
Because different drivers and other backend shit (credentials, keys, etc) will eventually break.
reckless150681@reddit
For me, it's a balance of risk (unknown chance of things going wrong) and time (guaranteed amount of time to be spent doing something).
Motherboard swap / rebuild takes the most amount of time. Separately, OS reinstall takes an hour or two (after you set up drivers, preferences, debloat, etc.).
So for me, even though you're absolutely correct that there's no technical harm in letting things be and waiting to see if something breaks, the prospect of having to set aside a separate block of time later down the line is negative enough that I would rather wrap it into my initial block of time and get it all over with to begin with.
fakeaccount572@reddit
Because it takes an hour and you have a nice fresh new PC that way
Shap6@reddit
but then you need to reinstall all your programs, log back into everything, restore your backups, etc. its really not just an hour.
fakeaccount572@reddit
Log back in would be automatic through a password keeper.
Reinstall? Good. That endures latest versions and drivers.
Restore backups? What is kept on PCs anymore. All important data should be on some off-site cloud something or other..
Shap6@reddit
do people not keep their drivers up to date generally?
lots of us still do work on our PC's as well as gaming
right thats where my backups are
Suspicious-Whippet@reddit
Nowadays it’s real easy to reinstall Windows. Pop in UnigetUI and reinstall all apps easily. I make a app bundle list in it and just install all of them in one go.
RumbleTheCassette@reddit
The risk is, what happens if you have hard to identify issues down the road? I consider it unlikely, but it's nice to just start fresh and ensure no finicky issues.
Shap6@reddit
Then you reinstall. I’d wait to see if there were any issues though.
Haunting_Lime2296@reddit
You need too
Shap6@reddit
Not necessarily
Gahvynn@reddit
At least as of 4 years ago the last time I tried this, yes.
Back in the mid 1990s through the 2010s I wouldn’t even dream of changing either a motherboard or CPU without reinstalling Windows.
About 10 years ago I pulled a HDD from a 2010 machine I built and put it into a 2016 build and it turned on but it was not stable at all, wiped the HDD and tossed it and installed Windows on an SSD.
Then again from the 2016 build into a 2022 machine I pulled the SSD and put it in, and it ran mostly ok, just a few instances where things got a bit strange. Ultimately a few weeks went by, enough strange little things I had to fix (and refix several times) I did a clean install and the machine has run just fine since. I’ve had a few friends that swapped the OS SSD from one rig to another and everything carried over just fine but that’s been the exception, not the rule.
Intranetusa@reddit
Windows 11 that came out in 2021 is supposed to be superior to all the previous OS and allow the greatest ability to swap everything without needing a complete windows reinstall.
PogTuber@reddit
I think things not working is the exception, honestly, it's just that people aren't willing to try it because of how bad it used to be.
But I agree if you start running into weird shit for whatever reason, then it's time to reinstall.
I_Love_Cape_Horn@reddit
No.
Maybe in the past when software was stupider but it's not mandatory anymore.
Just swap parts. If there's an error, sure, re-install the OS. But don't waste your time if you don't have to.
I've swapped my C drive across 5 different motherboards. Was there some start up jank? Sure. It fixed itself and now it's like nothing happened.
JBizz86@reddit
My case... Pc acting odd reinstall time. Lol been about once every 5 months.
Maverick842@reddit
I upgraded from an i7-8700K to a 7800X3D. In the past, I’ve almost always gone with a fresh install when making that big of a change, but this time I wanted to see what would happen if I didn’t. So I did it, went into safe mode and deleted all the Intel drivers, downloaded and installed all the AMD drivers, and almost 2 years later I’ve had little to no problems at all. your mileage may vary, of course, but it can be done successfully without a clean install
skrukketiss69@reddit
You don't necessarily need to but it's still a good idea to do it.
I do it once a year regardless of any hardware changes just because it's nice to have a fresh OS install, and I also do it every time I do a major upgrade like you have.
oldchairman@reddit
You can reinstall if you want , but what you need to do is use DDU to remove your old gpu drivers
dorting@reddit
New motherboard=new PC. Yes
I_Love_Cape_Horn@reddit
No.
I've swapped my C drive across many motherboards. No issues.
dorting@reddit
Maybe is possible, but not recommended. People have trouble updating GPU drivers
I_Love_Cape_Horn@reddit
Yeah, if you're having trouble. This is like getting a full blood work just because you feel a little tired. It's not hurting... but it's a huge waste of time and electricity.
Alexandre_Man@reddit
No, you don't need to. Unless you changed parts because your computer was slow, and it's still slow after the change.
Bored_Cat_996@reddit
Yes, a clean reinstall is your best bet. It avoids driver issues and long term headaches.
jcmred82@reddit
When I did my motherboard swap I reinstalled windows to start fresh. Noticed setting I deactivated this time around whereas before I let it be. You can prob get away with it uninstall what you don’t need anymore and reinstall new devices and drivers but I let windows install what it thinks it need then I went in installing specific devices.
PretendingImNotAnApe@reddit
If you pre-installed drivers for the new hardware it might boot but you may need a new license so you may as well do a clean install.
PretendingImNotAnApe@reddit
There is something called operating system degradation just from years of use the registry and cache files get bloated.
BrwnSugarFemboy@reddit
Honestly, it's good practice every new PC or so. At least if you swap the motherboard.
But also, I've been running the same Windows install for over a decade (7->10->11)
Syrath36@reddit
That's what I did cause I was lazy and didnt want to spend the time. Right now I'm building a new PC and switching to AM5 from Intel so I figure the bills come due. Time to do a clean install lol.
BrwnSugarFemboy@reddit
I'd say do a clean install since you're going from Intel to AMD.
I did the same thing back in 2019 though and all I did was run sysprep and copy the drive to the new one lol
PogTuber@reddit
Nah man try to send it first and see if it works! I went from Intel (4790k) to AMD (5600X) on the same install. I was surprised but it worked perfectly. I haven't had a BSOD on this install in years.
SA_Swiss@reddit
No, you do not NEED to, but, it is a bit like not turning on an XMP profile for RAM.
You are leaving performance on the table. Re-installing will ensure that everything is set to your environment and therefore faster (sometimes noticeably).
Desperate-Big3982@reddit
You have an Intel Core i7 8700k, that I'm guessing is running on a Z370 motherboard, but you are moving to an AMD 9800X3D I'm guessing on at least a B850 motherboard.
Windows should work, but it will require significant updates after first start, and Windows will have the unlicensed issue because you changed your motherboard/CPU.
Also, if you are running Windows 10, take the opportunity to do a fresh install of Windows 11.
sgrobpla@reddit
That is an interesting point, Windows license won't recognize the new hardware as "licensed"
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farrellart@reddit
The old license will most likely need re-activating via Microsoft as MS will think the old license is being used on a different computer. It's an automated phone call to get a new code. I haven't need to do that for a few years so the procedure may be different now.
PogTuber@reddit
I have not reinstalled windows, just reset it (keeping apps and settings and documents) through two motherboard and 3 CPU changes, and a couple SSD migrations.
Windows 10 is amazingly resilient compared to older versions.
So I would say no, don't reinstall it unless you run into problems. Because you'll save a lot of time and there's no drawback. SSDs don't give a shit about how big your registry is.
randolf_carter@reddit
No, i've used the same OS across several motherboards and CPUs going back to 2011 or earlier (updated from 7 to 10, then to 11).
Rakhsev@reddit
Ideally yes, but not obligatory at all. Only if you experience weird problems. Generally, a few reboots will do the trick.
log2av@reddit
I will be in same situation. I have genuine windows whose license i got from my friend, so I don't have code. Can I simply use the refresh option that deletes all the files? I have amd cpu + nvidia gpu, and going to same config. I will be reusing my nvme.
AdvancedMilk7795@reddit
Windows licenses are generally locked to your motherboard.
Triensi@reddit
You can definitely use the same Windows installation with no modifications but you might want to reinstall later.
In practice, whenever I upgrade my computer I leave my C drive alone and just plug it in as normal. But, once I do my diagnostics and stress tests to make sure everything is good, then I make the windows installation media and all drivers using that upgraded computer. Saves me the headache of using a different computer.
d0ubleR@reddit
I just did almost exactly the same except i went Intel to Intel. I did not resinstall but windows wanted me to log back into to numerous apps. BUT, you are going from Intel to AMD. I would reinstall.
wavemelon@reddit
If it works fine and you have no issues or random freezes and crashes, then don’t bother.
markeydarkey2@reddit
You'll need to contact Microsoft to transfer your windows license but otherwise it should be fine. I've been using the same windows install across 2 motherboards, 4 CPUs, and 5 GPUs since 2014. My clean-slate Windows 11 laptop is less stable than this.
i5 4570 -> R5 2600 -> R9 3900X -> R9 5900X
Win8.1 -> Win10
XtremeCSGO@reddit
You can get into windows and use the computer at least. I did a similar thing from an I7 4790 to a 7600X3D. But I had some micro stutters that went away after I did a reinstall or an upgrade from windows 10 to 11
Logical_Cranberry852@reddit
Operating systems usually calibrate themselves according to the device they are being installed on. So better to re install using your new PC to avoid weird problems.
Mereo110@reddit
Only Windows. In Linux, drivers are integrated into the kernel. No need to reinstall the OS.
Mereo110@reddit
If you're using Windows: Yes.
If you're using Linux: No.
bods_life@reddit
Yes .....
Powerful_Physics1780@reddit
I did this recently. I was going to wipe out windows anyway so why not. Technically, it worked. I had weird slowdowns though. The desktop would lag even though I had low cpu/ram utilization. I reinstalled all the drivers, but never cleared it up. It wasn't hardware, the problem went away on Linux and windows when I put that on another drive.
Just backup your stuff and reinstall.
_asciimov@reddit
Can you? Sure. But should you? No.
It's not gonna harm anything, and will likely run fine.
But then you have all that old cruft and baggage that you likely don't use anymore hogging up resources.
In an ideal world you set up some partitions, put steam games on their own partition along with important documents, and things you want to save. Then when you have to reinstall you only have to do the OS and apps.
And when you install apps you use something like ninite to get multiple apps quickly installed
Sergeant_Fred_Colon@reddit
As long as the ssd isn't encrypted windows should boot and find the right drivers.
As its pretty much a new PC at this point I'd take the time to give it a fresh install of windows though.
3point21@reddit
You can absolutely transport your old Windows SSD into the upgraded machine. But it comes with technical issues. The license may or may not need reactivation. If you were previously on W10 you may or may not get the automatic upgrade.
My experience: ASRock Z97 extreme 6ac, i7 4790k, MSI GTX870 to Gigabyte Z890, Core Ultra7 265k, RTX5050. I had already Cloned my old W10 onto a 2T Samsung 990 and tested it in the old machine. Fired right up in the new machine as well, but with the following issues:
Mobo: had to upgrade BIOS and drivers, which would need to be done even with a clean OS install.
GPU: again had to download (massive) GPU drivers, but first I had to uninstall all the old NVidia drivers and software.
OS: my retail W10 license was an upgraded W8 retail license, and my build was past the date for a free W11 upgrade on that old license, so I had to buy a new one. No biggie the old machine still works and has its own license.
The only reason I went this path was to preserve old Adobe software and licenses that I can’t port to a new machine, otherwise I would start from scratch.
USSHammond@reddit
You're jumping multiple CPU generations and you're going from Intel to AMD. A clean install is not a requirement but very highly recommended to do due to the nature of the hardware change.
EffectiveSwimming492@reddit
Mem no, HD no, GFX card no, MB yes. Windows ties its OEM to the MB BOIS or UEFI
ecktt@reddit
No but I would.
m4tic@reddit
It will work, but you want a fresh install.
sgrobpla@reddit
You can, but there may be a lot of previous junk left from the previous motherboard, more so because you changed platforms , so all the Intel specific drivers won't be of use to the AMD platform at all, they even may cause problems. Like when you change GPUs and you are supposed to delete all the previous drivers so they don't clash together.
LaughingwaterYT@reddit
I mean if you are getting that serious of a upgrade I think it deserves a fresh windows install (would also be less issues in the future) get the iot ltsc version
PoppaMeth@reddit
I've transplanted my OS through numerous hardware changes without issues. My current office system is a Ryzen 7700X running Windows 11. It started life as Windows 7 on an i5-6500. We've got one at work that was an 8th gen Intel laptop and is now a full Ryzen desktop. All I had to do was swap the drive, let Windows do its thing reconfiguring, uninstall any Intel drivers (except Wi-Fi), and install AMD drivers. A few pieces of software needed activations transferred, but otherwise it's always gone pretty smoothly. Windows has been pretty good at adapting since Windows 10.
phate_exe@reddit
I generally don't bother unless/until the computer is still doing weird stuff after installing all the new drivers.
If it's working, feels good, and benchmarks are in the expected ballpark just send it.
Lewdeology@reddit
100% I would considering you’re upgrading to a new cpu and gpu and also just for peace of mind. If something’s not working right, you can rule it out
PayInevitable1001@reddit
Yo actualice de un i5-11600k a un amd 9600x. De una rtx3070ti a una rtx5080 y no he reinstalado nada.
Funny-Carob-4572@reddit
Up to you.
I for one do not, never had issues.
StoneyyCody@reddit
I only do when switching from an intel cpu to amd or vise versa. Probably better to just reinstall anyways.
Diktaattorimies@reddit
I did a complete upgrade without reinstalling and I've had no problems in 4 years.
Ythem@reddit
Upgraded my partners pc to am4 from lga1150, didn't do a fresh install and it's all working fine
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mahanddeem@reddit
Spending 3 hours reinstalling Windows and all other applications is much better than troubleshooting issues and glitches for weeks (and potentially suspecting hardware faults and contacting seller/manufacturers) and THEN reinstalling Windows and everything. If every major PC upgrade followed by a simple windows reinstall we'd never se3 kore than half of posters complaining about PC problems.
9okm@reddit
I would.
androk@reddit
I'm on my 3rd MB from an original Win7 machine, currently running Win11, I don't have any known issues. But other times I've seen people by a new storage HDD and windows was wonky until they reimaged it. YMMV
Miserable_Bobcat_594@reddit
No. Do yourself a favour and ditch Microslop
kawaii_Summoner@reddit
Best practice is to completely reinstall Windows after every major hardware change.
farrellart@reddit
I would reinstall as you are changing from Intel to AMD.
Wendals87@reddit
You don't strictly need to and it may work (you would need your bitlocker key handy though)
For best results its best to clean install
Bubbaganewsh@reddit
You could potentially do that and Windows may actually work after it discovers all the new hardware. If you really want to do it that way go to device manager and delete everything before making the switch. Chances are though it's going to be a complete mess and if it was me I would reinstall from scratch to have a clean O/S.
Impossible-Move-2096@reddit
You can boot straight in, but clean install usually saves you random headaches later.
Thundernutz79@reddit
It's typically best practice to do a fresh install with so many major component changes. However, you'd probably be fine booting from the existing SSD. Just don't be surprised if you see some weirdness until you get the old drivers cleaned up and fresh ones installed, especially for the GPU.
OwnMonitor6090@reddit
Up to you dude it’ll work just fine if you boot into your old windows but most people would wanna upgrade if you’re gonna upgrade everything else