Hi John, no you can delete only the SW2016 key, without affecting the others. Also you do not have to delete it as such, you can simply rename the key to something like SW2016_old, which will achieve the same result.
Thanks, Prasad, for the quick response, albeit bad news. One follow-up if I may:
I can, of course, use the corresponding Copy Settings Wizard for each version to save each customization before the registry reset. Then, when I restart any version for the first time after the reset, should I expect to go through the registration/activation routine all over again for each version, or only for the first one? Will all the SP updates remain intact?
Any other pitfalls that you envision to get all three versions up and running again? -- John Willett
You don't have to go thru registration/activation routine all over again for each/any version (if you've already done it) since that is under a different folder.
And yes all SP would remain intact.
Hi John, no you shouldn't have to. Your Solidworks serial numbers are stored in the registry under HKEY_LOCAL_MACHINE\SOFTWARE\SolidWorks\Licenses so you won't have to reactivate the licenses. The updates should also remain intact, you can restore your particular customization using the Copy Settings Wizard as you suggest.