Unable to install Kontakt after it uninstalled itself after Update

Hello, so basically I updated Kontakt to version 6.6.1 cause some plugins didn't want to work with the older version, but after it updated, it suddenly disappeared from Ableton and also showed up in Native Access as not installed.
Whenever I try to install it again, it installs - shows up as installed - after reopening Native Access it gets back to not installed section (and still doesn't show up in Ableton.) I've attached three ss of how it looks (pretty normal, but I dunno).
The installation route didn't change, it should install in the same folder as every other plugin did. (I've attached 2 ss of both my NA plugin download location and ableton's download location)
I'd really appreciate if someone could help me with that issue, I'm working on a project and 95% of my Libraries are using Kontakt, I've sent a message to NI support, but I'm afraid it may take them long to reply..

 

Also, I forgot to mention I'm on Windows 10, 64bit. What might be important - I can find some Kontakt files (never looked at them before so I assume they are incomplete, since it is "uninstalled") in my normal plugins location and in NA content location - I attached a few screens for that. There is an exe file, when I open it it gives a message like on the screenshot, and when I click on activate it doesn't do anything (when NA is opened), and only opens NA (when its not), so it's not much.

 

Could be win 10 ransomware protection, try to disable it while install, and enable after.


Uwe