McAfee mcafee, computer, software, Internet

I purchased an Acer Aspire 5733 notebook which was preinstalled with McAfee Internet Security Suite trial. I decided to take advantage of the trial since it came preinstalled on my laptop. Upon expiration of the trial, I decided not to subscribe and purchase the software since I wasn't completely satisfied with the anti-virus software, and I'd wish to purchase and use one that I felt performed more satisfactorily. I tried to install Kaspersky Internet Suite which I'd purchased, but I was unable to install the anti-virus software onto my computer because it is incompatible with McAfee, and I was given a response to uninstall McAfee first.

I have been unsuccessful at my attempts to uninstall McAfee Internet Security Suite from my computer. The software is evidently hidden since it does not show up in my list of programs in the control panel. I contacted McAfee support and was told to try and delete McAfee from the program files folder in my computer. This was unsuccessful as well, and I was given a message that access is denied and I need permission to remove the software. My computer is currently unprotected and vulnerable to a host of malware and viruses since I haven't subscribed to McAfee and I'm unable to install an alternate antivirus software due to not being able to remove McAfee. My Windows firewall has been disabled and the inactive McAfee software has taken over it as well. 

The tech from McAfee told me he could remove the software if I gave him remote access to my computer which is something I declined since I didn't feel comfortable giving someone complete access to my computer and personal files. I've never had software that I was unable to remove and needed permission to remove from my computer, and why do I have to give someone remote access to my computer in order to remove the software? This particular behavior seems suspicious and fraudulent.

I purchased the computer so I should have control over what programs I want and don't want installed on it. I feel McAfee has devised a clever way to force consumers into purchasing their anti-virus software by not allowing them to remove it or install a different anti-virus software. I'll reiterate, I cannot use any other anti-virus software on my laptop since McAfee is still installed, and I cannot remove it. Every other anti-virus software that I have used: Norton, AVG, Kaspersky e.g. I've been able to remove from my computer if I decided I no longer wanted it. This should be the same with McAfee.