Computer running slow?

Question

I reformatted the hard drive and added memory to total 640MB, what more can I do?

I replaced the hard drive, so there are no viruses/spyware/adware

The processor speed is 2.5GHZ

All I loaded was Windows so far since reformating

Answer 1

Computer speed is a function of several things, having sufficient RAM is one thing (in fact 640MB is not enough for more modern games such as WOW). You should have at least 1GB or more.

Another speed function is your Processor speed. Nothing you can do about that but upgrade your PC.

Also, if you are loading a lot of programs during bootup that run in the background, this can also slow you down. Only start/load what you really use.

And lastly, you might have a virus that intentionally bogs down the processor.

Answer 2

Using a registry cleaner can clean up your computer and then make your computer faster,Why?the reason is that there may be some regsitry errors and remnant,corrupt files and temp files in your computer to cause "computer slow".
Everytime you install and uninstall software on your computer and surfing online you create junk in the computer registry.over time, the registry can grow to enormous proportions, especially if the various programs you've installed do not do a good job of deleting and/or updating it's Registry entries.You need to scan and clean your computer with registry cleaner to make it fast.Good Regisry Cleaner will improve your computer and Internet performance dramatically!
There are some comparison and review of TOP 5 registry cleaners.
http://www.make-pc-fast.com/
You can download and scan your computer for free.

Answer 3

You may have too many programs running all at once:

Click on: Start
Click on: Run
Type: msconfig
Click on: Startup
Uncheck: All programs you don't need starting up and running in the background all of the time like Yahoo Messenger, Limewire, etc.

Answer 4

Try defragmenting the harddrive, run an inti-virus program, an anti-spyware program, or shut down some non essential proccess.

Answer 5

Sometimes it happens due to the usb devices as well. Download ProcessMonitor and ProcessExplorer and see which process is eating your resources.

Answer 6

probally a virus