Windows Explorer Crashes on Right-Click

This is most likely happening because of a third-party shell extension. Here’s how to fix this problem.

1. Download ShellExView and run shexview.exe
2. Sort by the Company name and disable everything that’s not Microsoft.
3. If you need any of the extensions you disabled in the previous step, proceed to enable one extension at a time. After enabling each extension, test by right-clicking a file or folder.
4. Procedure end.

 
More information and additional methods to solve this problem can be found at this link: http://windowsxp.mvps.org/slowrightclick.htm