Download the following three programmes to your desktop :
1.
Rufus For 64bit systems 2. Windows 7 64bit RC link will be sent by PM
3.
Farbar Recovery Scan Tool x64 Insert the USB stick Then run Rufus
Select the ISO file on the desktop via the ISO icon.
Press Start Burn
Then copy FRST to the same USB
Insert the USB into the sick computer and start the computer. First ensuring that the system is set to boot from USB
Note: If you are not sure how to do that follow the instructions
Here Windows 7 and Vista screenshots When you reboot you will see this.
Click repair my computer 
Select your operating system 
Select 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 or
e:\frst.exe dependant on system
and press
Enter 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.
