When you boot the computer immediately press and hold F8, does a menu appear ?
If so is there a command prompt option ?
Does the command prompt option open ?
If so then download the correct version of FRST to a USB
Insert the USB
Boot to the command prompt
At the command prompt type the following :
notepad and press
Enter.
The notepad opens. Under File menu select
Open.
Select "Computer" and find your flash drive letter and close the notepad.
In the command window type
e:\frst64.exe and press
Enter (or FRST if 32bit)
Note: Replace letter
e with the drive letter of your flash drive.
The tool will start to run.
When the tool opens click Yes to disclaimer.
Press
Scan button.
It will make a log (FRST.txt) on the flash drive. Please copy and paste it to your reply.