I Attempted both upgrading from windows 98 to SP4 pro and installing on a blank HDD to SP4 pro and when i get to CD key section, every cd key i find is NOT working.
@spot57 I found the ISO here: https://archive.org/details/Win2000ProSP4PL but i can't confirm if it's the correct version or not, since i don't speak polish and just made a quick search, hope this works for you I know it's not the same than downloading it from here, but it will do the work while the ISO isn't here, maybe in a few days i'll check it
Windows 2000 Professional (with SP1) (OEM) Windows 2000 Professional (with SP1) (OEM) [Czech] Windows 2000 Professional (with SP1) (OEM) [Greek] (ISO) Windows 2000 Server (with SP1) (OEM) (ISO)
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It's DDTPV-TXMX7-BBGJ9-WGY8K-B9GHM
I found the ISO here: https://archive.org/details/Win2000ProSP4PL but i can't confirm if it's the correct version or not, since i don't speak polish and just made a quick search, hope this works for you
I know it's not the same than downloading it from here, but it will do the work while the ISO isn't here, maybe in a few days i'll check it
I'm not sure about this copy. It looks ok, but installer skips product key.
This copy looks more original, but it has integrated updates: https://windowsbase.pl/download?file=https://archive.org/download/5.00.2195.6717-x-86fre-client-professional-retail-en-us-upgrade/Microsoft Windows 2000 Professional (SP4) [Aktualizacje 2010] [Polski].zip
https://archive.org/details/Win2000ServerSP4ITASelect
Windows 2000 Professional (with SP1) (OEM) [Czech]
Windows 2000 Professional (with SP1) (OEM) [Greek] (ISO)
Windows 2000 Server (with SP1) (OEM) (ISO)
must be 2195.1620