I have good news. Phase One decided to prepare yet another Capture One Pro 8 compilation. For now it is beta only available for the guys who contact their support. Hopefully the build will be widely available as soon as the tests are passed.
To give you some backgrounds on the case: I know that most of us are used to complain about Microsoft/Windows but according to some Capture One users who were digging into the root cause of the issue it was C1 developers' fault as they were using some undocumented functions. Phase One initially did not want to provide the fix pushing all to buy paid upgrade to Capture One Pro 9. The upgrade is some 90+ EUR which is pretty much if you are happy with version 8 and you are not interested in the new version 9 features. Furthermore, version 8 is not that old as it was still the latest C1 version a year ago...
Overall all is well that ends well and thanks Phase One for preparing the fix!