If you are having difficulties in activating the product with the supplied serial number, please follow these steps:
Select the serial number/registration key. Press Ctrl+C (to COPY), click in the registration field and then press Ctrl+V (to PASTE). By doing this you will avoid to mix up letters with digits.
Kindly note that each key is attached with a specific product. If you purchased Registry Booster, you cannot use the same key to unlock SpeedUpMyPC.
If you have a serial number for a version 1.x of a product, this is not compatible with version 2.x of the same product. You will have to purchase an upgrade license from the following page:
http://www.liutilities.com/products/store/upgrades/
