Change operating system

You can keep both Vista and XP. Below is the way to install XP, after Vista was already installed... creating a dual boot. First find the drivers for your network components, wireless card or nic, and save them to an external device such as a floppy disk or flash drive. Then you will need to go into the BIOS on your computer startup. Scroll to the System Configuration tab and go down to the SATA Native Support and change its setting to Disabled. Then hit F10 to Save and Exit. Next, insert your Windows XP CD and create the partition you wish to install XP on. After the installation is complete you should boot automatically into XP. Now you need to move some files. First, make sure you have set your folder options to see hidden files and to show protected operating system files. Then open Windows Explorer and go to the drive where Vista is installed. Copy the folder Boot, and the files bootmgr, boot.ini, NTDETECT.COM and ntldr and paste them to the root of your XP drive. Then download Vista Boot Pro and save it to your desktop or somewhere else that you can easily access. Unless you already have .Net Framework (v2.0 at least) it will redirect you to a Microsoft page where you can download this necessary component. Install and run Vista Boot Pro and open the "Bootloader" tab. Select "Reinstall the Vista bootloader" and press Apply. Then go to the Manage OS Entries tab and select "Add new operating system entry" and make sure you select "Windows Legacy". Give the new entry a name (ie: Windows XP) and select the drive letter you have XP on and then select Apply. You can also choose which entry you would like as the default the system will boot to. And now you should be able to dual boot between Vista and a previous OS. Thank you! Sabharish

Please consult links here, here and here before you make this change, as the functionality of your system could be adversely affected. Make sure you can acquire all needed drivers before you abandon vista. For a tutorial on updating drivers see here.
If you're having issues with vista performance, consider upgrading your ram, make sure you have all the latest driver updates, as a lot of manufacturers took some time to get their drivers up to snuff after vista was released,
See MS articles on vista performance here,
and a very helpful vista forum here.

I hope this information allows you to resolve this issue. If you need further assistance, please post back with a comment to this thread.
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