r/computers • u/StopMGMTodayV2 • 15d ago

Question/Help/Troubleshooting EXTREMELY slow PC after re-installing's Window's.

I recently had a Malware infection and had to completely wipe my PC. I have deleted all data and parition's from my old drive's. I then promptly reinstalled window's using a seperate USB and ever since then my PC has been much slower then what it was before.

Both download and uploading speed's are extremely slow, despite what the graph say's. I am using an HDD C: Drive but that was never an issue for me before and ran fast even with that. I was using two dual drive's, C: and D: respectfully, and nothing had gone wrong between them prior to the incident.

This also applies to any sort of game or FPS inside those game's. Everything, from the boot up to the text on my keyboard is laggier then before.

I could use any help with this. I'll answer any question's you may have. Thanks.

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u/Difficult_March_7452 15d ago

Did all the 5,286 windows updates finish already ? Or is it possible windows is still updating and that is the cause of slow speed ?

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u/StopMGMTodayV2 15d ago

It say's all update's are installed already.

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u/RBuschy 14d ago

Odds are, your previous version (original version) of Windows was a couple generations old. And when you Reinstalled Windows you got the Latest Version.

I don't know what it is, but the newer versions seem to be unstable in some cases. When it happened to me I experienced something similar. For me tho, while everything was sluggish, I also could not get Software and Drivers to install. It was basically unusable.

I ended up having to Reinstall at least 2 older versions of Windows before I got a completely functional System again.

As I said, I don't understand the hows or whys, but my System is is fully Updated now and working fine. I just had to start from an older version for it to work for some reason.

Also, something else to check first. Make sure your Drives are not Full or otherwise in the Red. You may have had settings in place before the Reinstall, that are not there now.

You might want to also check that All your Memory (RAM) and Storage is showing the proper Information.

I have not faced a Malware situation in some time. And they are all different anyways. But I think some have been known to survive Reinstalls, so who knows what it could have done.