a fake file inside a folder will not prevent you from opening the folder.
I think you have possible virus/addware/spyware/malware infecting your computer, and even if your antivirus doesn’t detect anything, that doesn’t mean your system is clean.
Try the following…
Spybot search and destroy, its freeware and has a resident program that will stop this crap before it installs, and will prevent any registry edits without your permission.
Ad-aware, also has a free version, which will do the job fine, no need to purchase the full version.
I also use “xoft”, which has found stuff that the other two has not. Its not free, but if your good with torrents, you can find it 
Also, check here to see how good your antivirus is rated…
http://www.virus.gr/english/fullxml/default.asp?id=72&mnu=72
and remember, there is NO antivirus that can detect 100% of viruses
Also, this problem could be from corupt system files, which could be caused by software or hardware failure.
The former may require an expirenced tech to resolve, or a reformatting and reinstallation of operating system, the latter may require replacing hard drive or other componants.
Suspect
I have spybot running and i have good anti virus software and apart from these two files thier is nothing wrong with my system