Activate Safe Mode in Windows 8:
Right click on the start menu and select run or just press the windows key+R
Type C:\Windows\system32\msconfig.exe and hit Enter – a system configuration window should pop up.
Alternative, you can also open it by entering C:\Windows\system32\msconfig.exe on file explorer or the Charms bar by pressing windows key+C.
Get into safe mode
Open the boot tab and Click on safe boot
Click on Apply/OK