If you are trying to format and reinstall Windows Operating System. You need to again set up permissions and names for the software and settings that you would install after  a format. Using a simple trick, we can backup the registry settings with the registry ( .reg ) file and can easily use it. every time after you format your PC. Here is a way to back up and restore all the share names and permissions from the old Windows installation to the new one.

• Open the Registry editor. From the HKEY_LOCAL_MACHINE sub-tree, go to the following key:
  SYSTEM\CurrentControlSet\Services\LanmanServer\Shares
• Save or export that Registry key.
• Type in a new file name (a file extension is not necessary), and then save the file to a storage device.
• Reinstall Windows and run the Registry Editor.
• Restore or import the Registry key. You’ll need to type in the path and file name of the file you saved.
• Restart your PC.

You can always restore your previous configuration by pressing [F8] at bootup and selecting the “Last known good configuration”  option.

Related posts:

• How to Restore a Deactivated / Missing CD/DVD Drive [Troubleshoot ]
• How to Restore Folders Upon Startup
• Undelete Plus – Recover / Restore Accidentally Deleted Files
• Troubleshooting – When Your Computer Stops Responding / Runs Slowly at Startup
• How to Gain Access to System Volume Information of System Restore
• Find and Download the Right Microsoft Software Updates using File Names