malwarebytes, update it and run from Safe Mode...
Also, disable Hibernation:
To make hibernation unavailable, follow these steps:
Click Start, and then type cmd in the Start Search box.
In the search results list, right-click Command Prompt, and then click Run as Administrator.
When you are prompted by User Account Control, click Continue.
At the command prompt, type powercfg.exe /hibernate off, and then press Enter.
Type exit, and then press Enter to close the Command Prompt window.
Make a new user as administrator and log into it. Can you get the task manager?