Permissions to change File Types settings?

[Michael Ray Brown]

Windows XP refuses to let me change the Folder Options. For example, I
click on the File Types tab, select Advanced, and uncheck the "Confirm open
after download" box. When I close and re-open the Advanced dialogue, the
check mark has returned. How can I get the options to stick?

I was only recently dual-booting into Vista, but I've wiped Vista off my
system, and I'm back to using XP exclusively. Could Vista have changed the
permissions? I'm logged in as Administrator.

 

[AJR]

After "unchecking" - restart the computer then recheck.

 

[Michael Ray Brown]

Unfortunately, restarting the computer changes nothing. Even the "Apply"
button is grayed out after un-checking the box. Basically the XP is
ignoring my attempts to make any changes, so I figure it must be a
permissions issue.