Antivirus software has been known to corrupt some EXE files even though they have no virus. If you are using one (even Windows Defender/Security Essentials built into Win8), try disabling it while downloading it, and then, if in doubt, you can scan it manually before running it afterwards.
/Allan
Edited 1 time(s). Last edit at 01/23/2015 10:22AM by ZeAllan.