A simple utility that cold patches the Desktop Window Manager (uDWM.dll) in order to disable window rounded corners in Windows 11. Tested on build 22000.194.
To successfully patch and not brick your system, make sure you have only one
dwm.exe process running. If you have multiple, connect normally to Windows, not using remote desktop or something similar.
Application requires active Internet connection when patching in order to download symbol files for
It is preferable but not mandatory to run the files from a separate directory. The app will temporarily place 2 files:
uDWM.pdb in the directory they are in, overwriting any existing files.
uDWM.dll is backed up as
Consult the source code if you want to patch manually, which is also quite advisable, it only takes changing a few bytes in the
Please make a backup of the original
uDWM.dll file before using so you can restore properly in case something is messed up. Use this software at your own risk.
To restore rounded corners, run the application again. After uninstalling, it is recommended to run
sfc /scannow in an elevated command window to restore proper file permissions to