1. Clean up the disk. To open Disk Cleanup click Start, point to Programs, point to Accessories, point to System Tools, and then click Disk Cleanup. After it runs choose those items such as recycle, Temporary internet Files, Temporary Offline Files. I do not recommend compressing old files.
2. Uninstall unneeded programs (especially those that run at startup and/or put something in the system tray. Anything in your System Tray is running in the background using memory and CPU. Weather Bug is notorious for slowing down a computer. Also remove programs that might be for printers or devices you no longer have.
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