Interesting. From your description, is doesn't sound like the problem was with the actual update since the same update worked on one computer but gives the activation error on the other. Since you've got two PCs with TTAX installed and with the same update and with the problem on one but not the other it sounds like you're in a position to try a few experiments to gain a bit more insight on the problem. On the PC that works, did you install the software on this 2nd PC only AFTER hitting the Error Code 630 problem on the 1st PC? On the PC that's working, if you exit TTAX, disconnect that PC from the internet (no WiFi or ethernet cable connection), and then start TTAX does the program then ask for the activation key or give you any other error (that is, does TTAX program activation require that you have a working internet connection?). When you did the uninstall/reinstall did you delete all files and folders that TTAX may have created during the earlier install before reinstalling? Do you have Windows System Restore running on the 1st PC and have you tried regressing to an earlier restore point (prior to the 1st install of TTAX); have you tried booting into Windows recovery mode and running a disc error check/fix?
