Blue screen: driver irql not less or equal

[joe albers]

hello
i have been using a hand me down computer that has some obvious issues. now i cant go online unless i am in safe mode with out the blue screen popping up and saying driver_irql_not_less_or_equal. in the meantime my taskbar and desktop have also disappeared and i can only use taskmanager on administrator even though my account has an administrator title also. please help me, i am novice to computer repair and am clueless.
sincerely,
joe albers

 

[Route44]

driver_irql_not_less_or_equal errors are caused by faulty drivers or buggy software. At this point we don't know what driver or drivers are cauing this.

In Safe Mode do the following: scan for viruses, malware, etc. What security software does this PC have?

 

[joe albers]

i installed Defender Pro 5 in 1 but it never ran correctly so i uninstalled that and installed a freeware called avanst antivirus. i am not so sure that it works all that great however

 

[Route44]

Avast is actually very good. Many, many people run it including myself on my second family rig. They update at least twice a day their virus definitions.

I don't know anything about Defender Pro 5 in 1. Were you having BSODs prior to installing yhis software?