I have annoying problems with the mouse: problems keeping focus on text when highlighting; single clicks taken as double clicks, etc.

Added: Not just me then...

Microsoft rolled out Windows 10...

Run that Codec pack through Virustotal first, I've seen many cases of it containing adware/spyware/malware.

And so is...



Although I have no idea why they used the word "potentially"....

I would say better to report it on Feedback as well as on forums.

A workaround for moving them is zipping them first.

To delete, I use a free tool called "Lockhunter".

The problem seems to be with .mkv files.