The Recycle Bin provides a safety net when deleting documents, list items, lists, folders and files. When you or site visitors delete any of these items from a Web site, the items are placed in the Recycle Bin.
Problem Description:
Unable to restore files/folders from Site Collection Recycle Bin
When we try to restore we get the following exception:
Error Message: Unable to restore ‘file name’
Troubleshooting Steps:
1) Checked on the path from where the Folder was deleted and confirmed that it was not modified or deleted i.e. all the top-level folders/sites where intact to get to the folder.
2) Checked for the available quota on site by means of storman.aspx
· Open the site
· Site actions
· Site settings
· Site collection administration
· Storage allocation (storman.aspx)
All looked fine still unable to restore
Resolution:
· Checked the Document Library where the folder had to be restored and found a folder named similar to the folder which was to be restored. E.g. RC PHASETEST4 as to RC PHASETEST3
· So, renamed the similar folder to something else and tried restore, it worked. Once restored reverted the renamed folder to original.
If you have any queries/questions regarding the above mentioned information then please let me know. I would be more than happy to help you as well as resolves your issues, Thank you