Windows LIVE Messenger downloads get stuck on 100%?

"This is usually down to Antivirus, particularly one that hasn't fully integrated (or is not fully compatible) with Windows Messenger.

Take a look in the Options > File Transfer and untick Scan files for viruses using box.

This is safe, especially if you have an active virus scanner as it will be scanned anyway - this is simply an extra level of protection.

Alternatively, you may want to look in your received files directory - I had this problem a while ago where it would look like it was hung, but the files had completed."