I'm not sure what the issue exactly is with the folders. Here are a few solutions that may or may not work depending on what issue it may be:
If you are not an administrator, give your account administrator rights in the control panel, and that may help you bluntly delete them.
If you require "SYSTEM" privileges, go into the advanced security section of the files you want to delete. There, find your account or username, edit your privileges to allow (shown with a check-box) deleting. Then, find the system privileges for those files, and deny, also shown with a text box, the similar privileges. Essentially, you'll be giving your account the privileges the "SYSTEM" has.
Another solution you can try, is going into the CMD (command prompt), found by opening the "Start Bar", and typing 'cmd'. There, use the commands, 'takeown', and 'icacls', to manually take ownership of the files and give yourself privileges over the files. Since this is a lengthy explanation in itself, you can simply find an explanation on the internet, by searching for 'file ownership with cmd'.
One final solution you can use, is to download McAfee's free security software trial. In their software package, there is a separate "Shredder" program that absolutely destroys files you select. What the program does, is give itself elevated access above your system to destroy the files.
On a personal note, if the files refuse to go with all of these methods, it is either a nasty rootkit/worm/virus, or just a problem I didn't list the solution too. If you feel it is behaving funny or lagging your computer, I recommend wiping your hard drive.
Answers & Comments
I'm not sure what the issue exactly is with the folders. Here are a few solutions that may or may not work depending on what issue it may be:
If you are not an administrator, give your account administrator rights in the control panel, and that may help you bluntly delete them.
If you require "SYSTEM" privileges, go into the advanced security section of the files you want to delete. There, find your account or username, edit your privileges to allow (shown with a check-box) deleting. Then, find the system privileges for those files, and deny, also shown with a text box, the similar privileges. Essentially, you'll be giving your account the privileges the "SYSTEM" has.
Another solution you can try, is going into the CMD (command prompt), found by opening the "Start Bar", and typing 'cmd'. There, use the commands, 'takeown', and 'icacls', to manually take ownership of the files and give yourself privileges over the files. Since this is a lengthy explanation in itself, you can simply find an explanation on the internet, by searching for 'file ownership with cmd'.
One final solution you can use, is to download McAfee's free security software trial. In their software package, there is a separate "Shredder" program that absolutely destroys files you select. What the program does, is give itself elevated access above your system to destroy the files.
On a personal note, if the files refuse to go with all of these methods, it is either a nasty rootkit/worm/virus, or just a problem I didn't list the solution too. If you feel it is behaving funny or lagging your computer, I recommend wiping your hard drive.