Look in Task Manager if nothing is being used System Idle process should be showing about 97% which is normal anything else using up a lot the CPU let us know what.

You could try Device manager to see if any yellow exclamation marks on there.

Have you removed any Security programs and installed others in there place.And what security programs have you got now.

Have you the latest Flash and Java programs installed.

If you don't use McAfee then you need the complete removal tool to uninstall -enter link description here

When I got my new computer a while back it actually had McAfee and Norton on it but it would start up with McAfee.

Maybe download the proper Removal tools from each of their sites run them and see if it makes any difference, Have you got the latest Firefox downloaded version 11.0

I notice that you have no Anti-Malware program installed.Maybe try Hitman Pro as it only takes a couple o minutes to run and gives you 4 weeks to use after registration.You dont need to register it if it does not find anything.

[A lot of HP security and connection manager] Sorry never had an HP computer so not sure what security that they have.

Is Device Manager clear and no exclamation marks.

Maybe try Ad-blocker plus on Firefox which may get it to run a bit faster.

Give clean up a run if you run any of those removal tools and maybe a defrag.

I have Automatic updates switched off as that tends to slow down the start up.

If you do not use Windows Defender go into services and disable it.

Oops meant disc clean up.

[Clean up.] My computer.Right Click C Drive.Properties.Disc clean up