Severe lag on Windows 11 even with no project – how to fully uninstall Cursor?

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1

Hi,

I’m having a serious performance issue with Cursor on Windows 11 and I’m trying to completely reset the installation.

As soon as I launch Cursor, my entire PC starts lagging heavily (CPU spikes and overall system slowdown). Even if I open Cursor with:

  • no project

  • extensions disabled

the problem still happens.

When I close Cursor, my PC goes back to normal after about one minute.

What I already tried:

  • launching Cursor without extensions

  • launching it without opening any folder

  • uninstalling and reinstalling the application

Unfortunately the issue remains.

I suspect that some cache or configuration files remain after uninstalling Cursor and keep causing the problem.

My goal is to completely remove Cursor from my system and reinstall it from a clean state.

Questions:

  1. What folders should be deleted to fully remove Cursor (cache, settings, account, etc.) on Windows?

  2. Is there a recommended “clean uninstall” procedure?

  3. Could this be related to GPU acceleration or Electron cache?

System:

  • Windows 11

  • Issue happens immediately when launching Cursor

  • No project loaded

Any help would be appreciated.
Thanks.

3

check your %AppData%/Cursor folder (this points to C:\Users\YOUR_USER\AppData\Roaming\Cursor), and try clearing that once you uninstall. i had similar problem but i resolved it by moving that folder to another (bigger) drive (with some additional tweaks, like creating symlink to make it work properly). not sure if that helps your case, but maybe wait for official response to be 100% sure

5

Thank you for your suggestion.

I tried deleting the %AppData%/Cursor folder (C:\Users\<username>\AppData\Roaming\Cursor) after uninstalling Cursor, but unfortunately, the problem persists.

The slowdown appears immediately upon launching Cursor and affects my entire PC. Even with:

  • no projects open
  • extensions disabled

An important detail: this problem seems specific to Cursor. If I open the exact same project with Visual Studio Code, everything works perfectly, and my PC remains responsive.

So, it’s not a project size or indexing issue.

At this point, I’m mainly trying to find out how to completely reset Cursor or identify the process that might be causing this widespread slowdown.

Thank you for your help.

6

sorry that didn’t helped as much and hopefully someone would propose better/correct solution to your problem.
good luck! :slight_smile: