Situation: key bought by private person (photographed from his box), after a few weeks the key is shown as invalid and the laptop is locked. Apparently the only way to get my data is to enter a valid Windows Vista Home Premium Key.
Load windows 10 as iso on a stick, install windows 10 and buy a key for 3-15 euro
Find a cheap one on EBAY etc. The cost is 1-5 euro. They also go quite normally
No, no longer officially supported by MICROSOFT.
Support was discontinued by Microsoft on April 11, 2017, including keys on third-party systems.
If necessary, load the hard disk with another system and then copy the data down.