Can I use Windows Vista 32bit serial on 64bit Windows Vista

[Coolestman]

I recently bought a copy of Windows Vista 32 bit edition, but now I want to upgrade the RAM on my machine to 4 gb and therefore I want to upgrade to a 64 bit operating system. So can I use my Vista 32 bit serial key for Windows Vista 64 bit OS, or will I have to buy a new Windows Vista 64bit OS? Thank you

[EINSTEIN_007]

See suggestions given in similar typs of threads: http://forums.techarena.in/vista-set...all/897184.htm
http://forums.techarena.in/windows-x...ion/973596.htm
http://forums.techarena.in/vista-help/866877.htm
http://forums.techarena.in/windows-x...ion/954780.htm

[nitesh mehta]

Yes the same serial key will work for 32 bit or 64 bit. If you have previously activated the 32 bit then you may have to make a phone to microsoft to activate the 64 bit install.

[newtech]

Some distributions of Vista come as both 32bit/64bit. However, unless you were explicitly given the 64 bit key, you'll have to actually request the key from Microsoft. Usually, it's free of charge; just demand the 64 bit key, as you purchased the 32/64bit version, and therefore deserve the 64 bit key.