Legitimate and safe place to download an OEM licensed version of Windows XP
without a subscription/for free?
None that I know of.
Goes back to borrowing one from friends/neighbors/family/co-workers...
The generic installation CD is not 'unique' other than by version (Home,
Professional, etc) and license type (OEM, retail, etc.) The former is truly
'out of your hands'. The latter - well - with some creativity and a little
effort (and a CD burner on a working computer) you can change the type of
licensed keys a given CD can accept - so a retail Windows XP ProfessionalCD
could be made so it accepts (installs with) an OEM product key. Also -you
could temporarily use a CD/Product key of a different type (not version) and
after the install - before activation - use a product key changer tool from
Microsoft to change the key to *your* OEM product key. You could also
contact the original manufacturer (Acer?) and see if they can send you an
installation CD (probably charge you something.)
The way to change the type of Product Key a CD can accept would be to edit
the SETUPP.INI file on the CD - meaning you would have to copy the CD
contents, edit the file, extract the boot sector of the original CD and burn
a new CD with all of that. While you were at it - you could integrate SP3
into it as well - making a nice CD for yourself for the future. nLite might
help with that.
The latter option - using another type of CD and the associated product key
until after the installation is complete and then changing the product key
originally entered to your own:
The Genuine Advantage Product Key Update Tool is only valid for
users attempting to change their current non-genuine Product Key
to a genuine COA sticker or genuine Product Key - all without a reinstall!
http://go.microsoft.com/fwlink/?LinkId=50346&clcid=0x409