The cursor completely formatted my C drive while I was running the project

Hey, thanks for the report. This is really critical, and I can see the screenshots with an empty desktop.

This is a known issue on Windows. The agent can run destructive shell commands like rmdir /s /q and Remove-Item -Recurse -Force via the terminal, and File-Deletion Protection and External-File Protection don’t protect against that because they only apply to built-in file tools, not terminal commands. We’ve seen similar cases:

Also, since you’re on a Russian Windows locale, there’s a chance another bug was involved, related to UTF-8 encoding in PowerShell scripts. That could turn a command meant to delete a specific folder into deleting the drive root. This specific bug was fixed in later versions.

What to do now:

  1. File recovery: as soon as possible, run Recuva or R-Studio. The key thing is don’t write anything new to that disk, so you don’t overwrite deleted data. The sooner you start, the better the chances.
  2. After you recover the system and reinstall Cursor, make sure to turn off Auto-run mode: Cursor Settings > Agents > turn off “Auto-run mode”. The agent will ask for confirmation before every terminal command.

To help track the incident, if you can:

  1. What exact Cursor version was it? Help > About
  2. Was Auto-run mode enabled?
  3. If you still have access to the Request ID from that chat, please send it (right top corner of the chat > Copy Request ID).

The team is aware of this issue. Let me know if you need help with anything else.

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