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Can Windows XP be installed on this computer using CD attached to a USB port? It has Vista home premium on it now.
Edwin

WARNING: IF THE SONY WEBSITE DOES NOT PROVIDE DRIVERS FOR XP FOR YOUR LAPTOP ON THEIR WEBSITE IT MEANS FORGET ABOUT USING XP ON YOUR LAPTOP

Your easiest option is to do a clean install of Windows XP, assuming, you
have a full retail copy of XP rather than an upgrade. Here is a link that shows you how to do the install: http://xphelpandsupport.mvps.org/how_do ... ows_xp.htm

Just make sure you have any drivers that may be need by XP for any
peripherals you have, i.e., printer, modem, SATA drives etc. Also, if you
have used Vista and created any documents etc remember to back these up just
in case you need them in XP.

Also, if the machine is still under warranty, check with the manufacturer to see if changing the operating system will invalidate the warranty (If you care).

A clean install is what we want to do.
Thanks
Edwin\
PS
May just clean all the unneeded files off and keep the Vista.

I put a clean install Win7 on a Vaio and it became a whole new and decent machine compared to when it ran Vista! No lockups and other funky things.
Going forward drivers are easier to get than if you are going backwards !

Good luck!

Did you use a 32 bit or 64 bit version of win7? I have a PC with win7 64 and I can't use a lot of my older programs. I just found out that win7 is available in 32 bit version.
Edwin