Optimize the system services by creating a profile with minimal no of services. Services are nothing but the background processes. There are some services which are not necessary. Such services should be stopped.
1. Press Windows Key + R.
2. Type "services.msc" in the Open textbox.
3. Click the OK button.
4. Right click a service you would like to terminate, and select Properties option.
5. Service Properties dialog will open.
6. Click the Stop button.
7. Select "Manual" from the "Startup Type" drop down box.
8. Click the OK button.
9. Do the same for all unnecessary services.
Use the Zombie Soft Fix. Select "computer runs slow" in the drop down box. Select the operating system from the subsequent drop down box. Follow the wizard.
Windows provides a way to optimize system settings for best performance. You can either customize Windows for best performance or best appearance. The former option should be selected as shown below:
1. Right click Computer desktop icon.
2. Select Properties.
3. Click "Advanced system settings" link.
4. Click the Advanced tab.
5. Click Settings under Performance frame.
6. Click the Visual Effects tab.
7. Select "Adjust for best performance" option.
8. Click OK | OK.
9. Restart your computer for the changes to take effects.