Click on the Start button, and you will see a blinking cursor in the
Search box. Type a keyword or something that is unique to the missing
file. Perhaps Windows can find it. If not, you are probably out of luck.
We only provide support for the Windows Mail program here.
We can't help with issues such as System Restore. Can't you get
support from the computer maker (Dell, HP, etc.)? You may have to
pay them for a service call if the warranty has expired.