Thank you for contacting Uniblue Systems.
To uninstall, first please close the program. By default the program is running in the background, in which case you should see the blue wrench icon in the system tray next to the system clock (lower right corner of your screen). Right-click on this icon and choose "Exit Registry Booster".
If you do not see this icon, please press (CTRL + SHIFT + ESC) on your keyboard to open Task manager. Go to the "Processes" tab, find and select registrybooster.exe and then click on End Process.
Then follow these steps :
1) Goto Start -> Control Panel -> Add Remove Programs
2) Locate the entry "Uniblue Registry Booster" in the list of installed applications
3) Click once on this entry and then click the button "Remove"
4) When prompted if you want to remove this application click "Yes"
This will remove the product from your computer. Let me know if you need further assistance.