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Windows 7: Windows Security: These Files Can't Be Opened!

09 Dec 2010   #11

Windows 7

I've tried changing settings in Internet Explorer (based on advice in another thread), but this Windows Security problem keeps popping up. Most recently, I can't run realplayer.exe - obviously downloaded from

Do I actually have to set up a new acccount to solve this ?
(BTW, I don't think I have any accounts on my PC, other than admin. I don't log in)
If I have to make a new account, can it be logged in on default on system startup?

My System SpecsSystem Spec
03 Jun 2012   #12

Win7 Ultimate 64bit
Possible Workaround

There is a known issue with profiles sometimes becomming corrupt in WIN7 I had it happen to me with one of my systems that was idle in my household for several days that was working fine. The msg "Windows Security The Files Cannot Be Opened" poped up on everything I clicked on in addition the startup group items were not loading after rebooting. I was dead in the water!

Creating another profile saving the contents of the old profile such as: favorites, documents etc.. is not recommended however I did and the warning does appear occasionally but now I at least have a working OS. Well worth introducing saved data is has nothing to do with the error msg. There is a registry value that controls IE settings with profiles I applied the below mentioned fix it did not help that much but the msg hardly appears now. hope this helps!

1. Create another user (admin)
2. Switch to the newly-created user
3. Run regedit
4. Navigate to HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings
5. Right-click -> export to the root directory (your drive C)
6. Switch back to your original account
7. Remove the the above key from the registry
8. Run the exported .reg

When trying to search in Windows 7 Start Menu, get error "Your - Microsoft Answers
My System SpecsSystem Spec

 Windows Security: These Files Can't Be Opened!

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