I have a flash drive with all the Setup Files tried to install from thumb drive, but it keeps corrupting my apps. I even transferred all the setup files to my docs and install from there, still corrupting my files I gave up trying find a solution via google and went and installed my program ex. Avira Antirus from web and it was fine. I got stuff like Avira Winzip Adobe etc (Win7 versions) in a folder named Setup files and WinSeven7 corrupts my file. Can someone tell what going on, is this a security feature or something what happens if I have no internet and want to install from a private folder exe. files or transfer programs PC to PC.