1. Disable Indexing ServicesLink to 10 Intermediate Ways To Speed Up Windows or More Ways to Speed Up Windows XP
2. Optimise Display Settings
3. Disable Performance Counters
4. Speedup Folder Browsing
5. Improve Memory Usage
6. Optimise your internet connection
7. Optimise Your Pagefile
8. Run BootVis - Improve Boot Times
9. Remove the Desktop Picture
10. Remove Fonts for Speed
Source: Connected Internet
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