How to uninstall Sentinel One without the key

1. Go to safemode.

2. rename C:\ProgramData\Sentinel to something else.

3. Delete all files in C:\Program Files\Sentinel One\Sentinel Agent <Version>\config\*

4. Reboot into normal mode and uninstall like so:

C:\Program Files\Sentinel One\Sentinel Agent <Version>\uninstall.exe /uninstall /key "null"

And it should let you uninstall.

I was logged in as SYSTEM with ScreenConnect Backstage feature and had to use takeown and icacls, but it worked.