Windows Backup Error

I keep getting these Event Logs in Event Viewer

Warning Source volsnap Event ID 24
There was insufficient disk space on volume D: to grow the shadow copy storage for shadow copies of D:. As a result of this failure all shadow copies of volume D: are at risk of being deleted.

Error Source volsnap Event ID 35
The shadow copies of volume D: were aborted because the shadow copy storage failed to grow.

As well as this error when backup completes;

-Windows Backup did not complete successfully
-The backup completed but some files were skipped.
-Open the Backup and Restore Control Panel to view settings

I have plenty of space available on my D: Drive and I have checked Microsoft's support pages with no positive results.

I also read that Norton Internet Security 2011 could be the culprit causing the failure, so I disabled it. Nothing is helping I can't create a full backup.

Does anyone have any suggestions. I'm stumped.

Oscar53 said:

I keep getting these Event Logs in Event Viewer

Warning Source volsnap Event ID 24
There was insufficient disk space on volume D: to grow the shadow copy storage for shadow copies of D:. As a result of this failure all shadow copies of volume D: are at risk of being deleted.

Error Source volsnap Event ID 35
The shadow copies of volume D: were aborted because the shadow copy storage failed to grow.

As well as this error when backup completes;

-Windows Backup did not complete successfully
-The backup completed but some files were skipped.
-Open the Backup and Restore Control Panel to view settings

I have plenty of space available on my D: Drive and I have checked Microsoft's support pages with no positive results.

I also read that Norton Internet Security 2011 could be the culprit causing the failure, so I disabled it. Nothing is helping I can't create a full backup.

Does anyone have any suggestions. I'm stumped.

Can we get a picture of your disk management control panel uploaded?

How big is the "D" partition, and how big is "C"?

Here is the screenshot you asked for as well as a screenshot of the Properties for both hard drives.

I'm backing up the C: drive to the D: drive.

Just tried putting the pagefile back on C: rebooted, checked the pagefile (back to Default). Ran Backup and got the exact same error. Thanks for the suggestion though.

Ok I've followed your instructions and ran the Disk Cleanup and CCleaner and here's the startup attachment.
I'll try the Backup again and see what happens.