← Back to Blog Support

Troubleshooting Common Issues

May 5, 2026  ·  5 min read

Most UnSafeExamBrowser issues fall into a handful of categories. This post covers the ones we see most often and how to resolve them in under a minute.

The Email Never Arrived

License emails are sent within 60 seconds of Stripe confirming payment. If yours hasn't appeared after a minute or two, the most likely cause is your spam folder. Search for "UnSafeExamBrowser License" across all folders. If it still isn't there, double-check the email address you provided at checkout — typos happen. If everything looks right, email support and we'll resend manually.

"Invalid License Key" Error

License keys are case-sensitive and contain no spaces. The most common cause of an "invalid" error is a leading or trailing space that copy-paste sometimes brings along. Copy the key exactly, paste it, and remove any extra characters before pressing Activate.

Application Won't Start

If UnSafeExamBrowser refuses to launch, try the following in order:

  1. Right-click the shortcut and select Run as administrator.
  2. Make sure you're on Windows 10 or 11, 64-bit. Older versions are not supported.
  3. Temporarily disable third-party antivirus software. Some heuristic scanners block unfamiliar executables.

Shift + F12 Doesn't Exit

On many laptops the F-keys default to media controls. Toggle FnLock with Fn + Esc, then try Shift + F12 again. If your keyboard has no FnLock, look for a setting in your manufacturer's keyboard control panel to change the default behavior.

I Need to Move My License to a New Computer

Email support@unsafeexambrowser.com with your old and new machine details. License transfers are free, usually completed within a few hours.

Still stuck? Our support team replies within hours.

Contact Support