I posted this in the "Windows Crashes, BSOD, and Hangs Help and Support" but have had suggested to me to post in "http://www.bleepingcomputer.com/forums/f/103/am-i-infected-what-do-i-do/", which they have suggested I post here.
I have a strange problem with Windows 7, I cannot run any executable. When I try to I receive a "These files can't be opened" (http://imgur.com/ZEnHAaG), your internet security settings prevented one or more files from being opened.
Some guides to solving this say to access the security settings internet zone but it is completely blank so that didn't help, I have also tried creating a new admin account but that gave me the same error when trying to open files.
Weirdly enough though I am able to open some programs (not all) by using the "Open with" command to run it. E.g to get firefox to run I need to open a txt file and open it with firefox. Other programs I've had to run it by cmd prompt, but this would only work if I shift click and open a location in the command window. Any direct double clicking on the executables results in the above error.
Running from the command prompt has only worked for some programs.
I followed the guide here (http://www.bleepingcomputer.com/forums/t/34773/preparation-guide-for-use-before-using-malware-removal-tools-and-requesting-help/) before posting but because of the above error I could not run FRST. Surprisingly I was able to get the cobian backup installed using my cmd prompt trick.
Please help, I'm not sure what else I can do to fix it. My backups have been having problems so I can't restore back to a previous time before this happened.
Thanks in advance for any help.
P.S I have tried to run a windows repair, but I get the same error about permissions.I also ran kapersky online scan and I also have Malwarebytes premium, neither revealed anything.