Here's a couple of things to try.
1) log into Unified Manager Configuration
2) Highlight "System"
3) Choose the "Tools" pull down at the top of the screen
4) Select "Refresh System Inventory"
Also make sure there are no mapped drives.
You can check it by accessing the console menu via Putty or Telnet. Choose option 7 to drop to the command line.
Type Net Use and press enter.
If any drives are mapped it will show them.
Usually, mapped drives are setup in BRU for scheduled backups. If there is one there, remove it.
Try your patch again.
BTW - if its not already in, the 370.194 patch should be the first you load.
-SD-
mysupportguy.net