Now and then, actually more often now i keep getting the error message cant install the program or file
"the file is corrupt" when i try to run setup files or CAB files. It complains sometimes when i try to install everything from drivers to other programs like Ciscos packet tracer, Skype, VLC, CHROME, Winrar X64, EVEN antivirus software.

But somehow in the end it installs the program, but not all programs. I know that the file isnt corrupt and the problem lies elsewhere.

I'm running Windows 8 X64 Pro on Asus U36SG. I'v installed it via USB. Installation went fine and i cant figure out
what the problem is. Compatibility issues? Anyon​e else having these kind of problems?