Oh and My compouter specs are:
Windows xp SP3,
Pentium 4 CPU
4 GB of ram
40 GB free HDD space.
I ran the Mcafee Pre installer everything was green good to go!
Please follow these step by steps before installation and everything should work well;
Open Internet explorer – Click on Tool (at the top bar)
Click on Windows update and install any available udpate
Create a new user profile in windows (as administrator)
Run MCPR tool from here and restart the PC : http://download.mcafee.com/products/licensed/cust_support_patches/MCPR.exe
Switch user to that new user account that you created
Run the McPreinstall tool from here : http://download.mcafee.com/products/licensed/cust_support_patches/McPreInstall.e xe
Reinstall your McAfee suite , If you still have issues, please click on useful links at top of this page and give a call to our Technical support experts and they would get it fixed for you.