How do I clean up my Sony PC

it could be because its closing down lots of programmes,some of them run in the background and you dont see them.
trying cleaning it up as in disk clean up or defrg if you have it,pluse get rid of any stuff you dont need anymore as in pics and music.

This can be a number of things but usually over time the system gets clogged up with junk stuff. The best thing is to save all that you want to a separate drive then reinstall operating system ie windows.

Improper computer maintenance may result in slow PC. To fix computer running slow you are required to clean junk and windows errors from your PC using a System Utilities program.
To download a reliable System Utilities, go to famous website download.cnet and search there Reginout. Which I personally use and recommend the friends.After downloading run all of its tools one by one except Internet Optimizer, to clean all the junk and error files from your computer.

You can speed up a slow running computer by:

Running a disk cleanup
Running Disk Defragmenter
Cleaning system for viruses
Repairing Registry Errors.

Please see the link below to speed up your computer.

Install Ccleaner, Download from:- http://www.piriform.com/ccleaner
Than clean your pc

Install Antivirus (If not) due to viruses too your pc may run slow

you can increase the speed of your computer by cleaning old stuffs.. see the steps here in the below link
http://www.soluzia.net/speedupurpc.php

Reinstall Windows.

Start--> Programs-->Accessories-->System tool-->Disk clean up click choose the option and click ok after that one dialog box will open check all the options and click delete it may help your computer

If u have more than one anti-virus programs i will recommended that u use only one program that will make your computer slow

your computer should be slow becaue u have too much stuff in your hard drive

Download CCleaner and scan the computer and recovery files it may help you

Best Of Luck :)

Try downloading RegScrubXP, this is a very good program.
It cleans up your registry and can bring slow computer up to speed again.

I find it safe t use and have been using it for years now.

Run a defrag on all your drives and clean up temp files. There is a free utility that cleans up pretty good and it's called CCleaner.
It's very important to defrag the HDD though.
Bye.