Windows XP won't see C drive after formatting and erasing vista on Toshiba Satellite P200-AB1 laptop

Try
XP Codec Pack 2.5.5

Download XP Codec Pack 2.5.5

Where did you get your drivers from? Make sure the drivers are compatible with Windows XP, Vista/7 drivers generally won't work. You can probably get the XP drivers from Toshiba's website.

Before you attempt it, make a couple of changes in the BIOS to hopefully work around a few problems that might crop up.
At reboot, tap the F2 key to enter setup that will allow you to make a change in the BIOS.
Disable caching module before you change the drive sata settings.
Set the hard drive to "ATA compatible."

You can download any/all the Windows XP or Vista device drivers for your model laptop from the Toshiba WEB site from their download page. Make sure you enter the model of your laptop so you can get the correct drivers. Please click on this link: -
http://www.csd.toshiba.com/cgi-bin/tais/support/jsp/home.jsp
http://blitware.com/adpages/driverfetch/manufacturer/?manufacturer=Toshiba&gclid=CMOVxNCBx6ACFSgnawodoHNGbA

You need to get disk for Vista from anyone and then use your windows product key mentioned on the sticker on back of your Toshiba Laptop to install Vista again on your computer. But as you had already formatted it so all data is lost now.

Hello,
Please make sure that you have installed proper driver software for your camera. Please goto this link to download the drivers to your computer and when the download is complete please open the downloaded file and follow the on screen instructions to proceed with the installation.
for Windows Xp, http://support1.toshiba-tro.de/tedd-files2/0/webcam-20070809133519.zip
For Windows Vista, http://support1.toshiba-tro.de/tedd-files2/0/webcam-20071108170647.zip
I hope this will resolve your problem, Please do rate my solution.
Regards, Rashid.

Satellite P200-1JV - Intel® Pentium® Dual-Core Processor T5450
- Genuine Windows® Vista® Home Premium Edition
- DVD Super Multi drive (Double Layer)
- 2,048 (1,024 + 1,024) MB
- 17.1 " Toshiba TruBrite® WXGA+ TFT display
Yes it will work easy, no dubt about that, Good luck

I am thinking that he just provided a set of drivers for this Laptop...

He simply put it there and said nothing...

I found it!!!>>>
Just go to Toshiba support web site Download the Storage Manager Driver for XP 32 then have an External floppy drive with formatted Disk ,install the drivers Files in the floppy connect the floppy drive put the XP sys CD Boot from the CD as in Solution #1 or by press on F12 tell choices boot screen popup select the CD then after that when the third party appear press F6 to chose the Driver for HDD to get recognized by the system. J

You cannot uninstall Windows Vista, but you can reinstall your previous operating system, which then replaces Windows Vista. To reinstall your old operating system, you must have the original installation disc. Back up your programs and files, insert the installation disc into your computer, and then reinstall the old operating system. To regain the hard disk space used by Windows Vista, reformat the disk during the reinstallation process. After reinstalling your previous operating system, reinstall your programs and files.