right click the start menu > run > msconfig > boot > Safemode > reboot then run malwarebyte.
if it still give you inappropriate permission error, try holding the shift key and right click it and run as administrator.
Your laptop trying to turn you into a non masculine person.
with all joke aside. Is it only turn pink when you adjust the screen? The connections could be loosen and follow jarotech. If it also shows the pink color on the external then it's a costly issue.