A notice says I'm not legal but I am legal

[stumble]

Windows 7 Home Premium
Product Part No.: X15-37379
Installed from 'OEM' media.
Product ID: 00359-OEM-8992687-00006  match to CD Key data
CD Key: VQB3X-Q3KP8-WJ2H8-R6B6D-7QJB7
Computer Name: WAL-MART
Registered Owner: emachine
Registered Organization:

My Windows 7 came on my machine. I haven't used it for awhile and when I put it together  today it says I';m not legal.

Do I have to do a  Windows 7 install and lose everything  just so I can put the legal serial in?

Sandy in FL

[reddevilggg]

and when I put it together  today it says I';m not legal.

What does this mean??  Did you get the Hard Drive from another machine?? Did it boot properly??  How long is 'awhile' ??

Did you activate Windows when you purchased the machine ??