Re-initialize Offline Files Cache
This is something you would do if you use the synchronize offline folder(s) and want to get rid of all the offline files. Some of the reason maybe because you don't need to synchronizte anymore and the other maybe because the path is old and you need to synchronize a new path.
1. Click My Computer > Click Tools and select Folder Options
2. Click Offline Files tab. While pressing CTRL + SHIFT, click Delete Files
3. Click Yes then click Apply and OK.