reading your error there, I'd recommend running System File Checker - SFC

 

1. Click Start  and then type cmd in the Start Search Box.
2. Right-click cmd in the Programs list, and then click Run as administrator.  

If you are prompted for an administrator password or confirmation, type your password or click Continue

3. At the command prompt, the following line, and then press ENTER: sfc /scannow

Airport security is a burden we must all shoulder. Do your part, and please grope yourself in advance.