Hi Ray,
Welcome to Microsoft Answers!
You may check if the services related to Back up and Restore are started when you are trying to do a back up of the files.
1. Click on Start
2. In the start Search box type Services
3. Right Click on - RUN AS ADMIN
These are the services that are required to be running when you are trying to perform a back up.
Windows Event Log Started Automatic
Task Scheduler Started Automatic
Windows Backup Stopped Manual
Also antivirus/antispyware/security products have been known to cause this issue. Try disabling the security software and check if you are able to perform a back up.
Hope this information is useful.
Amrita M
Microsoft Answers Support Engineer
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