That means you're running Windows10 2009. Only Win10 has release 
versions but if the currentversion is showing you should be OK.

BTW, 2009 is no longer supported and is vulnerable to attack. You should 
upgrade to Win10 21H2. Win11 is not ready for prime-time yet.

On 3/06/2022 1:46 pm, Ivan wrote:

> 
> On Win 10 there is a ReleaseID value 2009
> Now I have running 2 other PCs. On Win Vista and Win 7 is no ReleaseID
> 
> But
> HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion
> contains a value CurrentVersion
> 
> On Win10 the Value is 6.3    (the next value)
> On Vista is 6.0
> On Win 7 is 6.1
> ...
> I think the CurrenVersion value can be used for the WinVersion.
> 
> Thanks to all for the hints.
> 
> Ivan
>