Duplicate cursor windows opening simultaneously and cursor lags and freezes

[Udit_Bhatia]

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

Hi Cursor Support,
I’m experiencing two consistent issues with Cursor on my Windows 11 machine:

Freezing when manually editing code files
The entire application freezes (becomes completely unresponsive) as soon as I try to manually edit text in a code file.
Multiple duplicate windows opening
Every time I open or use Cursor, multiple duplicate instances/windows keep spawning. I can see many Cursor processes under Task Manager.

Environment:

Cursor Version: 3.1.10 (user setup)
VSCode Version: 1.105.1
Commit: dacbe9b31599a253763e4910eb6ab38704653320
Date: 2026-04-13T11:39:16.806Z
Build Type: Stable
Electron: 39.8.1
Chromium: 142.0.7444.265
Node.js: 22.22.1
OS: Windows 11 (Windows_NT x64 10.0.26200)

This is happening reliably and makes Cursor very difficult to use.
Could you please help me troubleshoot or provide a fix for these issues?
Thank you!

Steps to Reproduce

Just start cursor and try to access a larger code file maybe a 1000 line code file

Expected Behavior

I should be able to edit files without lag or freeze and task manger should not have duplicate cursor windows opened maybe causing lags while editing code files

Screenshots / Screen Recordings

Operating System

Windows 10/11

Version Information

Version: 3.1.10 (user setup)
VSCode Version: 1.105.1
Commit: dacbe9b31599a253763e4910eb6ab38704653320
Date: 2026-04-13T11:39:16.806Z
Layout: editor
Build Type: Stable
Release Track: Default
Electron: 39.8.1
Chromium: 142.0.7444.265
Node.js: 22.22.1
V8: 14.2.231.22-electron.0
OS: Windows_NT x64 10.0.26200

Does this stop you from using Cursor

Sometimes - I can sometimes use Cursor

[deanrie]

Hey, thanks for the screenshot. I see Cursor (30) in Task Manager, and that’s actually normal. Cursor is built on Electron, and each internal component (renderer, extension host, GPU, terminals) runs as a separate process. These aren’t duplicates and it’s not a bug.

The real issue looks like memory usage. You’re at 91% Memory, and the main Cursor process is using about 1 GB. That can cause freezes when editing files.

Try this:

1. Check extensions. Run cursor --disable-extensions from the command line. If the freezes stop, an extension is likely the cause. Then re-enable them one by one to find the culprit.
2. Cmd+Shift+P or Ctrl+Shift+P then run Developer: Open Process Explorer. It’ll show which process is using the most resources.
3. How much RAM does your machine have? At 91% memory usage, the system may be using swap heavily, which can slow things down a lot, especially with large files.

Let me know what you find, especially whether it’s better with extensions disabled.