I cant access the internet..keeps saying internet explorer has stopped working?

[Ken]

Hi
I suspect that your problem is not going to solved by me - or anybody else with one post.

If the machine is slow and you cannot access the internet you will not be able to download anything.
( normally )
Try this:
Switch the machine on and immediately start tapping F8 about once per second.
You will be taken to the Advanced Startup Options.
Select Safe Mode with Networking.

When it boots up the graphics will look a bit odd - this is normal for Safe Mode.

If you can access the internet now download Malwarebytes from here:
https://www.malwarebytes.org/
You want the free version.

Install it > update it > run it.
Let it delete all that it finds.

If it does find malware you still need specialist help to check your system over.
I can recommend the guys at http://www.freepchelp.co.uk

You need continuity with thus particular problem.
Only being able to post once is not really going to help you here.
Hopefully MBAM will go some way