Use a registry cleaner. Most popular choices are Regclean, RegSweep, Error Nuker and registry fix. These are all great ways to improve computer performance.
Defrag your computer hard drive. Over time, the data on your hard drive gets scattered. De-fragmenting your hard drive puts your data back into sequential order, making it easier for Windows to access it. This is a great ways to improve computer performance.
Scan for Ad ware/Spy ware and Viruses. Best anti-virus programs are nod32 and kaspersky anti-virus 7.0 for there fast light weight application. For a all in one internet security suite Norton internet security, Panda internet security are by far one of the best. Norton seems to slow computer performance but newer versions are getting much lighter then previous versions. Deleting viruses, worms and spyware are great ways to improve computer performance.
Adjust your computer’s Visual effects. First click start, Second click Control Panel, Third click classic view if not already did so, Fourth Double Click System, Fifth click Advance Tab, Six under performance press Settings, Seventh click adjust for best performance.This is a simple way to improve computer performance.
Start-up Programs. By eliminating un needed start up programs you free up computer resources.To start click start then run and type MSCONFIG then a screen will pop up, click the tab start up at the top. Un check all program except for anti viruses. Click Ok, Restart now or later Unnecessary for Startup
Alerter
Clipbook
Computer Browser
Fast User Switching
Human Interface Access Devices
Indexing Service (Slows the hard drive down)
Messenger
Net Logon (unnecessary unless networked on a Domain)
Net meeting Remote Desktop Sharing (disabled for extra security)
Remote Desktop Help Session Manager (disabled for extra security)
Remote Procedure Call Locater
Remote Registry (disabled for extra security)
Routing & Remote Access (disabled for extra security)
Server
SSDP Discovery Service (this is for the utterly pointless
"Universal P'n'P", & leaves TCP Port 5000 wide open)
TCP/IP Net BIOS Helper
Telnet (disabled for extra security)
Universal Plug and Play Device Host
Upload Manager
Windows Time
Wireless Zero Configuration (for wireless networks)
Workstation