ubersu

All you need to do is to submit a support ticket to Flight1 and they will arrange for you to get a copy of the installer. You are not the first person to have this issue. When you get the new installer, make a backup. You may also retrieve your codes and get a new copy of the key via Flight1's automated system.
 
DJ

Of course we can tell you - a recent MS update loaded a fix called 3086255 which ostensibly fixes a possible exploit in certain security media. Basically, it disables the FS9 disk 4 security measure - just like Win10 does natively.  All of you who are suffering from this 'improvement' need not remove the patch. There is a procedure to enable and disable it from the command line. You can find full instructions in the MS documentation for this patch, here: https://support.microsoft.com/en-us/kb/3086255. Take a look in the "Known Issues" section. It would be interesting to know if the procedure they outline also works in Win10.
 
DJ