I told you how to tell Windows to skip the integrity check a long time ago:
Click the Start orb/button and in the box enter the following:
cmd.exe
Right click cmd.exe and choose to Run as Administrator:
Now you can tell Windows NOT to check the integrity on the volume where your large backup is (if that is F) with this command:
chkntfs /x f:
That tells Windows NOT to check drive F when Windows starts... when you reboot with the image backup are things better? If so you could leave it like that but if there ever really is an integrity problem (if the volume becomes dirty for some reason) Windows will not know about it or try to fix it.
After the experiment you can (and probably should) set things back to normal with this command:
chkntfs /d