Windows 7 - random window flashes appearing/disappearing - Not office 365

Feb 26, 2018
4
0
10
Hi All,

Using windows 7 SP1 - fresh install, and using windows update to update the windows with the latest updates.

At some point (can't tell when) a mysterious window start to flash for a fraction of a second very randomly (maybe once an hour or half an hour).

1. Tries to view all windows event log that happened at that exact time, but couldn't find anything.
2. I don't have Microsoft office installed - and already saw the solutions suggested with office updater - I don't see a folder like that on "services.msc"

I got to capture this on camera:

https://youtu.be/GOcFcKAm0UQ

Any suggestions?