It means it is an issue with your computer. Please follow the steps given below:
1. Please remove your antivirus. This issue could be created by a corrupt antivirus. Please click start
, click control panel
, click Programs and Feature
(Add or Remove
if you have windows xp) and remove the
2. .I would suggest you to scan your computer using the free version of anti-malware software. This will remove all of the malwares, spywares, viruses from the computer.
Please open the following link and download free version of malwarebytes.http://download.cnet.com/Malwarebytes-Anti-Malware/3000-8022_4-10804572.html
Click Download Now
Now,on the next page you might see, "Your download will begin in a moment.
click Run, Run again and install this software.
After that, click Quick scan and click start.
It will take around 10-15 minutes to scan. Once the scan is complete. You will see a link, "Select All". You will click "Select All". After that you will click "Remove Selected"
Then you will see a pop up with options, Yes or No. Click Yes and this would restart your computer.