I 've had my headset for about two months. The first problem was needing to go to Vive to download the software/drivers. All I wanted were the drivers but I got all the rest also.
I did end up reinstalling several times but I never had to go to the folder you mention. I did use Programs and Features to uninstall all the HTC Vive software before I tried to reinstall.
Right now the headset works well, when it works, but I am having a situation of the headset not getting the video signal unless I unplug and re-plug the USB cable, every time I start it up. The Vive Pro, which I used for 3 years, had no such problem. I am wondering if that is because the Pro had a switchable power box so you could remove power from the connections where the Cosmos Elite seems to turn itself off but the connections are still made.
On another note, if you have any problems with your system staying asleep, please let me know..