Thanks for all suggesions, topmahof.
I did all of that.
-No registry errors worth mentioning.
-Deleted all bluetooth devices including their drivers.BUT STILL: Same issues.
After a long time of "Searching preconfigured driver folders."
I wonder whether there are too many files in that folder.
(I have a download folder on a FAT32 partition on the SSD that takes a long time before all files show up - green load-bar in location bar.)
I have an SSD and i noticed that the "waiting for cache" in Google Chrome also takes longer sometimes.
Recently I've been fiddling with Ultimate Windows Tweaker
... Maybe I turned something off that I shoudn't have ...
For example: should I enable or disable SuperFetch with my Kingspec SSD?
And something else. In the screenshot above I noticed "ReadyBoot.etl". Does this mean that readyboot is running? Can / should I disable that somehow?
OK. That's a lot of questions again.
Thanks so much!