Well it  all started with Start 10 and I have remained there and it has all the time with Start 10. I read that Start 10 was compatible with W 11 but that does not appear to b so. I have always updated Star 10 when requested. I am not sure what version but have had to pay another subscription as requested for Start 11 which is compatible with W10. My PC although of good quality is not compatible for W11 and I see no reason just to buy a new laptop just for the sake of it. No idea about Start 11 version and cant seem to find what version it is. Sorry to be a numbskull its probably why I wanted to remain with the old fashioned W8 type interface. Sorry!

Open Start11 and click on About.

That most probably is Start10 v1.98. That should be fine for Windows 10. Did you try to install Start11? If you did, than you can not use Start10 license key to activate Start11. You will need to purchase Start11 and you will be given license key for Start11 for activation.

If you wish not to move on to Start11, you should just stay with Start10 as long as it still work with current Windows 10.

Thank you,

Basj,
Stardock Community Assistant

What stop working altogether? Start10? Does it load itself after system start? Do you have to activate Start10 every time you reboot? Please elaborate more so we understand the issue better.

Thank you,

Basj,
Stardock Community Assistant

Please try purge and reinstall steps as mention here : [Link]. Just make sure to redownload the latest version from your account page. Reboot after the purge. Reinstall and reboot again after the installation. Retest and report back here.

Thank you,
Basj,
Stardock Community Assistant.