Unable to install or uninstall Davinci Resolve

W11 v25H2
Davinci Resolve 64bit standalone install

Opened Resolve this morning, it advised upgrade available …. So downloaded and installed 21.01 Run as administrator.
It completed, rebooted PC (W11) but as usual did not create any startup icon
Went to C:\Program Files\Blackmagic Design\DaVinci Resolve
And double-clicked on Resolve.exe ( I normally create a desktop shortcut to this)

It failed to start with error C:\Program Files\Blackmagic Design\DaVinci Resolve\cudnn64_9.dll is not designed to run on windows or contains an error.
Error status 0x000012f

I downloaded and installed it again – tried uninstalling, same thing

I then tried to uninstall using Revo Uninstaller - it failed with error (pic attached)


I then tried uninstalling using settings > apps > installed apps and right clicked on apps to delete ..... several apps deleted (all under Davinci Blackmagaic ) but one remains - Resolve it shows as 5Gb but when I try to delete same error as above.

If I try a new install (as admin) it now fails with error 'A newer version of Resolve is installed; uninstall it in Control panel first'

If I try to remove in 'Control Panel\All Control Panel Items\Programs and Features', I get the same error about can't remove as its on a network resource,

It has only ever been a local install, never networked.

Anybody know a way to clean this out ?

Are you sure you downloaded the correct version? If there is a x64 and an ARM64 version you should download the former for a standard PC. I would use Revo Uninstaller, let the original uninstall fail and then search and remove all traces of the application. Then reinstall the application carefully choosing the correct version. In worst case I would reinstall the previous version and ignore the update.