Okay so you have opencl kernel caches in DT… I would find them… I will look-up the directory for you and delete them… they will be created again from scratch and perhaps clean up any remaining issues…
EDIT:
C:\Users\username\AppData\Local\Microsoft\Windows\INetCache\darktable
username = you windows user account name
Delete the files in here…since its a new install and if you have not imported a lot of files maybe the mipimaps files too…these are the image thumbs but they can also be recreated… I don’t think any harm to kill them as well and start from scratch…
See if that helps…