I suggest we take a deeper look into your system for possible malware and technical conflicts.
1. Open this link and download ZHPDiag :
https://www.nicolascoolman.com/fr/download/zhpdiag/ (Don't be alarmed is the site is in French, it sometimes happens, the tool will take your system language and allow the download if you get a warning message, ignore it.) Click on the download button
2. Save the file on your Desktop.
3. Double click on ZHPDiag.exe and follow the installation instructions.
(For Vista, Win 7 and 8 users, click right to ensure you execute with admin right)
4. Double click on the short cut ZHPDiag on your Destktop.
5 Click on scan
Wait for the tool to finished (maybe a long time)