Things that can cause the HWID to change:

- Changes to the computer name
- Changes in major hardware components (e.g. motherboard, hard drives, network adapters, etc.)
- Changes in the active network adapter(s) – this is common on laptops when switching between wired and wireless network connectivity
- Changes in current Windows hardware profile – this is common with laptops that are used in and out of a docking station

This is not an exhaustive list, but this is what we see most often.

If you have a paid (Advanced or Professional Edition) license our sales team can simply reactivate the license and send you a new license file. All you need to do is send the license key and new HWID to sales [at] thinware [dot] net and they will take care of it for you.

If you have a free (Standard Edition) license all you need to do is request a new license via our website:

http://www.thinware.net/Products/ThinwarevBackup/StandardEditionLicenseRequest/tabid/234/Default.aspx.

Hope this helps.