My parents computer has died and after carrying out some tests I believe the MB has died. The board, cpu and memory are now a bit dated and having looked at replacing the MB I am unable to find one of the same spec.
By far the easiest option is to buy a new base unit but this would come without an OS.
Is it possible for me to retain the current Win 7 OS and use it on a new PC?
Is has been a while since I have had to reinstall Windows on a PC so realise things may have moved on.
Thanks in advance to anyone who can offer any advice.

By far the easiest option is to buy a new base unit but this would come without an OS.
Is it possible for me to retain the current Win 7 OS and use it on a new PC?
Is has been a while since I have had to reinstall Windows on a PC so realise things may have moved on.
Thanks in advance to anyone who can offer any advice.
My Computer
At a glance
Windows 7 Ultimate x64
- OS
- Windows 7 Ultimate x64