Lets get a log from FRST, and see if it shows the cause of the issue. Please download Farbar Recovery Scan Tool (FRST) from one of the following links, and save it to your Desktop (please note that some web browsers will automatically save all downloads in your Downloads folder, so in those cases please move the download to your desktop):
For 32-bit (x86) editions of Windows:
http://download.bleepingcomputer.com/farbar/FRST.exeFor 64-bit (x64) editions of Windows:http://download.bleepingcomputer.com/farbar/FRST64.exe
Note: You need to run the version compatible with your computer. If you are not sure which version applies to your computer, then download both of them and try to run them. Only one of them will run on your computer, and that will be the right version.
Run the FRST download that works on your computer (for Windows Vista, Windows 7, and Windows 8 please right-click on the file and select Run as administrator).
When the tool opens click Yes for the disclaimer in order to continue using FRST.
Press the Scan button.
When the scan is done, it will save a log as a Text Document named FRST in the same place the tool was run from (if you had saved FRST on your desktop, then the FRST log will be saved there).
Please attach the FRST log file to a reply using the More Reply Options button to the lower-right of where you type in your reply to access the attachment controls.
The first time the FRST tool is run it saves another log (a Text Document named Addition - also located in the same place as the FRST tool was run from). Please also attach that log file along with the FRST log file to your reply.