Forum Discussion
The last Windows update made my computer five times slower than it was
This week I was prompted that Windows would end their support for my version of windows and that I had to install 20H2. I found it odd that some people already had that update since way before, but I didn't pay much mind. I did so, and it took forever, after it was done, my computer became quite slow. I saw I still had a couple of updates remaining, so I thought that might help. It did not. I shouldn't have installed this update. I have a Legion Lenovo gaming laptop, y520, which should support heavy games, and barely more than a year old, but now it's slower than my 10 year old Win7 pc. I don't even play games most of the time, if anything DCUO or Gmod, both pretty old games. But my computer now is super slow, and it struggles running something as simple as chrome or Opera. And not even fast tabs. What do I do to go back to my normal speed? Please help this is unbearable. It's almost as if I had a 2gb ram.
Hello Charles1810,
Suggest you to run System File Checker scan:
1. Search for 'command prompt' using Cortana or Windows Search.
2. From results, right click on Command Prompt and select Run as administrator.
3. Type sfc /scannow command and press Enter key.
4. Let the command complete and then reboot the machine.
If issue still persists, perform clean boot:
https://support.microsoft.com/en-in/help/929135/how-to-perform-a-clean-boot-in-windows
Let us know if this helps!
- Come on... "sfc /scannow"???
Everytime I tried using that "tool", it always ends up either crashing or finding no problem.
As to the "Clean Boot"... Really, you really think running your PC is safe mode is an acceptable answer to Microsoft breaking a previous clean installation that was fine?
The real answer is to provide the poster with the ability to undo this supposed upgrade.- It is basic troubleshooting steps for general Windows issues and while you might not see the sfc fixing any issue, in other cases, it actually solved problems. Running Clean Boot is different from the Safe Mode. In this case Windows will boot normally while with minimum services and we also advise them to try Safe Mode to diagnose the issue, so in case issue didn't reproduce in the Safe Mode or Clean Boot, then we could ask user to enable services one by one or check installation status to identify what causing this failure.
In addition, sending report through the Feedback Hub app is also recommended , so Windows team would be able to investigate this issue.
