Not likely. And Windows doesn't tend to lie about admin rights...
As far as not finding the files, you need to show hidden files and folders in the Explorer Tools > Folder Options... Dialog, View tab.
I have the same problem with my inDesign at work. I am using a mac. I already reset the preferences (many times), I did restart my computer also several times.
Everytime after the restart of the computer (and before resetting the preferences) it worked for some minutes. But then again it suddenly stopped while working in an InDesign file (I tested different files).
At the end I uninstalled InDesign and installed it again. Directly after the new install it doesn't work.
So I have no idea anymore what to do now. I could restart my computer and work for 10 minutes and restart it again, but that needs way too much time.
A number of users have found the PushBullet plugin for Chrome to be a cause of this behavior.
wow! the day before yesterday I installed exactly this plugin! I now unistalled it and hope I won't have that annoying problem again thanks a lot!