I booted up Ubuntu today, and I noticed these folders in my file manager. Whenever I open the file manager now it freezes for like 2 minutes before I can do anything. And if I click on any them I get an error message that pops up. The picture if of the error, but you should be able to see the folders I'm talking about. There's like 100+ of these folders.
These are network drives, judging from their icon. The file manager seems to have a problem with their names probably because of the square brackets. Do you have any software running that might connect to a large numer of network shares or exports? Scanning for them, perchance? Would be easier to guess at what's going on if you'd enlarge the left column so that the names are fully visible.