I have a problem with my PC, whereby I cannot access my USB. The USB drive works fine on other PC's but cannot seem to work on one of my PC's. I get the following message, "G:\is not accessible Access Denied".

Does it require me to re-install the USB drivers?

Make sure you have all MS updates,

Remove USB drive
Check device mgr to see if there are any yellow marks with the USB category, if so, right click and choose uninstall

Go up to actions and choose, scan for hardware changes

I found an Answer, so I had to inform everyone

Open Microsoft System Configuration Utility, by typing msconfig in the run window
Under services tab, deselect AdminWorks Agent X6
Remove USB
Restart computer and it should work...