I was browsing the internet, and suddenly the screen flickered a few times and went back to normal. This didn't look right to me and I rebooted the system. Windows didn't boot properly for a few times, but after a few attempts went back to booting normally. Strangely though there is no internet access. Windows network settings app doesn't open. Windows Diagnostics says that Diagnostics Policy Service is not running. If I try to start it, it says: Error 5: Access is denied.
I tried Windows Recovery, but unfortunately there are no restore points. It seems like it was set to store data on a drive that was full, and didn't store any. I didn't download anything recently and Windows update history shows nothing recent. Just prior to this happening I did look up information on the Ukraine conflict to figure out what was going on, and I do wonder if some site somehow manged to infect my system through some exploit. Avast anti-virus and RogueKiller don't find anything unusual. I also didn't notice anything unusual other than the network not working. I also have Ubuntu installed on the same drive, and it works fine with normal internet access.
Any ideas what happened and how can I fix it?
I tried Windows Recovery, but unfortunately there are no restore points. It seems like it was set to store data on a drive that was full, and didn't store any. I didn't download anything recently and Windows update history shows nothing recent. Just prior to this happening I did look up information on the Ukraine conflict to figure out what was going on, and I do wonder if some site somehow manged to infect my system through some exploit. Avast anti-virus and RogueKiller don't find anything unusual. I also didn't notice anything unusual other than the network not working. I also have Ubuntu installed on the same drive, and it works fine with normal internet access.
Any ideas what happened and how can I fix it?