Do the following to put your computer and Windows in good shape and speed:
Disable unneeded services
Click Start and then click Run (or Search, in Vista and 7), then type the following command and press the Enter key:
services.msc
Maximize the window for easy viewing.
If you have a home desktop computer (not networked to other computers), and not an office desktop, you can safely set the following services to manual or disabled, as mentioned below. Depending on whether your have a Windows service pack installed, you may or may not see all these services listed. Ignore the ones that you don't see in the services list.
For each of the following services, right click it and then click Properties. In the Startup type drop down menu, click manual and then click OK.
Set the following services to manual:
Fast User Switching Compatibility Service
Application Layer Gateway Service
Background Intelligent Transfer Service
COM+ Event System Service
COM+ System Application Service
Cryptographic Services Service
Distributed Link Tracking Client Service
Indexing Service
IPSEC Services Service
Network Location Awareness (NLA)
Service Portable Media Serial Number
Service Print Spooler Service (You may set it to automatic, if you have a printer attached and print frequently)
TCP/IP NetBIOS Helper Service
Telephony Service
Terminal Services Service
WebClient Service
Set the following services to disabled:
Alerter Service
ClipBook Service
Distributed Transaction Coordinator Service
DNS Client Service
Error Reporting Service
Messenger Service
MS Software Shadow Copy Provider Service (Set it to manual, if you use the MS Backup utility)
Net Logon Service
NetMeeting Remote Desktop Sharing Service
Network DDE Service
Network DDE DSDM Service
NT LM Security Support Provider Service
Performance Logs and Alerts Service
QoS RSVP Service
Remote Desktop Help Session Manager Service (Set this to manual, if you use remote desktop)
Remote Registry Service
Routing and Remote Access Service
Server Service (If you're on a network, don't disable it )
Smart Card Service
Smart Card Helper Service
SSDP Discovery Service
Telnet Service
Upload Manager Service
Volume Shadow Copy Service
Wireless Zero Configuration Service (Don't disable it, if using a laptop and a wireless router)
Free up Disk Space on the windows drive (mostly drive C)
Disable some startup items in MSConfig
Remove some items from the Windows Startup group
Clean up your Registry. Clean up your registry regularly, say once a week or every fortnight. Use a free program like Regcleaner from tweaknow.com
Remove unneeded/unused fonts
Enable Cleartype in disply properties - advanced tab.
Disable short file names to speed up Windows
Run this from a command prompt,, by running the command - cmd from the run (or search) box. The command is:
fsutil behavior set disable8dot3 1
Disable timestamp for last access to a file to speed up Windows
Again, run this from the command prompt:
fsutil behavior set disablelastaccess 1
For Windows Vista, disable superfetch
Run the following command from the Search box: sc config Superfetch start= disabled (The space after the = sign is intentional)
Disable the Windows' built-in zip feature
To disable this feature, in the Run box, type the following command and hit the Enter key:
regsvr32 /u %windir%\system32\zipfldr.dll
A reboot is required for the changes to take effect. For more information, see http://www.annoyances.org/exec/show/article03-202
Install Tweakui powertoy from http://download.microsoft.com/download/f/c/a/fca6767b-9ed9-45a6-b352-839afb2a2679/TweakUiPowertoySetup.exe
Download and install the Microsoft TweakUI Powertoy. It has many Windows tweaks and options that you can enable or disable.
Periodically reinstall windows
It's a good practice to reinstall Windows, say every 3 months or so. Don't forget to BACKUP (http://www.backup.info) your data files before the reinstall. If your system is infected with too many viruses or malware it may be better to reinstall Windows. Here are some Youtube videos about installing Windows:
For installing/reinstalling Windows XP:
http://www.youtube.com/watch?v=P_932T4FAAY
http://www.youtube.com/watch?v=XSJTgvet9QY
http://www.youtube.com/watch?v=n0cop_am1WM
http://www.youtube.com/watch?v=Wf2Ffm33DhA
For installing/reinstalling Windows Vista:
http://www.youtube.com/watch?v=VeBjxHm19pk
http://www.youtube.com/watch?v=puY4vRhAKYo
Upgrade the RAM:
http://www.youtube.com/watch?v=SsXNT6fnHmM
http://www.youtube.com/watch?v=yx7CEg1NLkU&NR=1
HTH,
Raspal