My Computer Seems To Be Running Really Slow And I'm Worried I Might Have A Virus Or Something On My Computer. I Keep Getting Little Pop Ups Every Now And Again Too But My Current Virus Checker Does Not Pick Anything Up. I've Heard Of 'Hijack This' But I'm Unsure As To What It Is And How To Work It?

Hijack this really is great virus scanner. It often picks up malicious software, spyware, and viruses which your current virus checker may have missed for whatever reason. However, unless you know what you are doing, it can be quite risky to use. This is because Hijack This scans all of the running programs on your computer. The results bring up a list of running programs and it does not tell you which ones are dangerous and which ones are vital for your computer to work. This means that unless you know what your computer needs and what shouldn't be there, you may end up deleting something which was needed and your computer could fail to work.

There are forums which help you with Hijack This, so it is completely possible to download the software, run a scan and save the scan results without doing anything, then post them onto a forum. Experts will then help you to remove what is needed, if anything, and your computer will still be safe! The Hijack This software is completely free and it really is great to have too! It is definitely recommended for all computer users.

You have to download registry cleaner,

then you have a good option.

If you have Norton Anti Virus, use it! Then defrag your computer. Every time you get online and down load something, the pop ups seem to "pop up"! Just be careful and not open anything you are not sure of!

There are lots of problems which make your pc slow.
Microsoft Registry Problems = Slow Computer!
Spyware/Adware
RAM
De-Fragmenting
Etc.

Below can help you speed up your pc:

I. De-Fragmenting
1. Right click of C Disk.
2. Click properties.
3. Click tools tab.
4. Click "Defragment now".
5. Click Defragment.

II. You can search which process full use you cpu, and end the process.

Under steps:
1. Right click on the TaskBar.
2. Click the Task Manager.
3. Click the processes tab.
4. Double click the CPU.
5. Find if the "System Idle Process" is max.
6. If not right click and click end process.

III. Manage your startups. Your excess CPU usage is due to too many programs running in the background. You can cut these to barebones by alter your msconfig. Here is how:

1. Open your Start menu.
2. Click Run
3. In the command screen type "msconfig.exe"
4. In the "system configuration utility". Click either "service" or "startup" tab
5. Uncheck all programs that you are no longer using.
6. Click "OK"

1) Run Avast boot Scan
2) Run Reginout Scan
3) Remove unwanted browser extensions and toolbars.

Thank you