Is the registration number of GreatStar series software valid all the time?
The registration number of Greatstar Software is matched with your computer. You need not to reimport registration number when you reinstall GStarICAD if you do not change hardware or reinstall operating system, except the method of registering update version changes. If you just reinstall operating system, the previous number is still valid, reimport it after installation can make you through. If you change the mainboard or hardware, the previous number is invalid, you have to get a new free registration number from GreatStar Software.
