The mfewfbk.sys if part of the McAfee's virus protection.
I do not think you can disable this driver from the Safe Mode.
For our next step you will need.
A USB Flash Drive
Another clean computer.(You cannot work from the infected computer directly).
Stop here if you do not have a Clean Computer at your disposition.
Let me know what you have.
Preparing the USB Flash Drive
Using the Clean computer download the right version of Farbar program for your system to Desktop.
64-bit or 32 bit version. Select the one you need.
Move the executable (FRST.exe or FRST64.exe) to your USB Flash Drive
How to determine whether a computer is running a 32-bit version or 64-bit version of the Windows operating system.
If you System is a Windows 10, it's the same instructions as Windows 7.
WINDOWS 10 USERS.
Once in the command prompt
Plug your USB Flash Drive in the infected computer
In the command prompt, type notepad and press on Enter
Notepad will open. Click on the File menu and select Open
Click on Computer/This PC, find the letter for your USB Flash Drive, then close the window and Notepad
In the command prompt, type e:\frst.exe (for the x64 version, type e:\frst64.exe and press on Enter
Note: Replace the letter e with the drive letter of your USB Flash Drive
FRST will open
Click on Yes to accept the disclaimer
Click on the Scan button and wait for the scan to complete
A log called fixlog.txt will be saved on your USB Flash Drive. Attach it in your next reply.
If at any time you need additional information please ask before proceeding.
Note:If you can't access the Recovery Environment using the F8 method above, you'll need to create a Windows installation or repair media.
Let me know and I will give you additional information.