One of the most common causes is actually an error in the Temporary Internet Files folder or an error in the Download Program Files folder. I have also seen this when the cache is either full or sized incorrectly. If this is the program, clearing these folders through Internet Options in the Tools menu will usually fix the problem:
Clear the Cache:
1. Open IE
2. Click Tools
3. Click Internet Options
4. Click General Tab
5. Under Temporary Internet files, you should click Delete Files
6. Confirm with an OK
Or, if you don't want to throw all your Temp files away:
1. Open IE
2. Click Tools
3. Click Internet Options
4. Click General Tab
5. Under Temporary Internet files, click Settings
6. Click View Objects
7. Look at the Status column. Right click on the files listed as either Unknown or Damaged, and then select Remove from the context menu.
8. Confirm with Yes
9. Close the remaining windows by clicking OK
If the above does not work, you may have to remove all the files in the Downloaded Program Files folder.
