I tried but cannot run the PC Checkup. I tried to respond back to Ravi" - Dell computer expert but  there are too many hoops to jump through and have not been able to do so. I also cannot set "full permissions" for myself. I am the only user of my PC. I'm set as Administrator. Been having lots of problems ever since first call  to Dell. Person that answered told me Dell refers all these calls out".   After someone called me back shortly after, I paid $149.99  to caller who took control of my computer and "fixed the problem".  After, I could not print from computer and could not re-install either. Dell download would not work. I called him back and he fixed that. But when I called Dell back because MyDell keeps saying I have windows update disabled. I was told there was no record of my earlier call. I still get no updates even though I DO HAVE windows update enabled. Tried numerous times to do so and to run PC Checkup. Cursor hand just sits there and won't run. Now I find I cannot even set permissions for myself. Every time I boot up Internet Explorer comes on and says it  cannot run. I don't even use Internet Explorer. I use Google Chrome and Firefox.  

Somebody please help!