Your computer has been severely infected by malware, that is ~UAVSETUP.EXE. This is quite dangerous and unsafe for your PC and there may be other infections on your PC. You should urgently check your PC and remove any malicious application including ~UAVSETUP.EXE as soon as possible.

Location : C:\Documents and Settings\UserName\Local Settings\Temp\~uavsetup.exe
Type : Malware
Dangerous : YES
Removal : Immediately

 
How to get rid of ~UAVSETUP.EXE file / Error message

 
If still have problem, download the HijackThis file and post in the forums for free technical support.
For more information – How to post HijackThis log file?