This is a small issue I ran into. I attempted to launch Windows Fax & Scan, and received the error:
Windows cannot find ‘c:\Windows\system32\wfs.exe’. Make sure you typed the name correctly, and then try again.
This is a simple fix. For me, Windows Fax & Scan wasn’t installed. To install it:
1. Go to Start, Control Panel
2. Choose Programs, then “Turn Windows features on or off”
3. Scroll down and check the box for Windows Fax & Scan
NOTE: This feature is only included Business, ultimate, and enterprise editions (http://www.microsoft.com/windows/products/windowsvista/features/details/faxscan.mspx)