I recently reinstalled SW. The procedure is to make sure you back up the vault before you start unistalling and downloading softwre. For a change I did the right thing and did this. After the new software was installed, ( A lot of water went under the bridge before this including winding all my files back to a previous date through Wiindows XP.) When I accessed the Vault I noticed that some of the files had gone missing including some that I'd just been working on and submitted to a client. After a few minutes of hand wringing and teeth grinding I remembered that I'd backed up the vault. To reinstall the vault, you stop the vault service, rename the backup vault and current vault folders and restart the service. It really was that simple. I was greatly relieved to find the files back again.