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1) Uninstall the demo or the retail versions of fraps.
2) Close any application that YOU (not necessarily your computer) might be running.
3) Open Regedit.
4) Press Ctrl+F to bring up the searching tool and ask it to search for ¡°nZgFQGQhfU¡± exclude the quotation marks. The reason why we need to perform a search trough the whole registry is because this value gets installed into different paths depending on the computer it is running on. But I¡¯m pretty sure it¡¯s name remains always the same.
5) When it finds that value, delete it. DO NOT delete the Key/Folder that contains this value.
6) Now delete ¡°HKEY_LOCAL_MACHINE\SOFTWARE\Licenses".
7) Close Regedit.
8) Open the DOS command prompt. And type del /s /q %temp%*.tmp
9) Exit the DOS prompt once it has finished doing the instruction described above.
10) Install the retail version of fraps (make sure you are not installing the demo).