I went to open one of the folder in my Sandisk extremem 3.0 64 GB drive. The folder is full of files I never put in there, and it says that the size is 60 TB! I tried to delete it but it just says: “Prepairing to delete” then does nothing.
How do I clean this out? I am running Windows 7 64 bit.
Sounds like an defekt in the file system. Try running chkdsk on it, also available via tools tab of the properties window of the drive in the Explorer.