Windows Vista系統還原

你可以打電話 去你買了電腦那個牌子的電腦公司問怎樣可以系統還原。 (好似是開機時按二下F10掣或 F11 掣或 F12掣, 就可以系統還原)
http://windows.microsoft.com/en-HK/windows-vista/Installing-and-reinstalling-Windows-Vista#section_3
To reinstall Windows VistaIf you want to reinstall Windows Vista by performing a clean installation—possibly to restore the default Windows settings—here's how to do it. (If you're having a problem with Windows, first see What to do if Windows won't start correctly, which explains how to use the Windows installation disc to fix problems without completely reinstalling Windows.)WarningBack up your files before you begin reinstalling Windows, even if you're reinstalling Windows on a hard disk partition. A clean installation replaces the current version of Windows and all personal files.Turn on your computer and insert the Windows Vista DVD or CD.On the Install Windows page, follow any instructions that might appear, and then click Install now.On the Get important updates for installation page, we recommend getting the latest updates to help ensure a successful installation and to help protect your computer against security threats. You will need an Internet connection to get installation updates.On the Type your product key for activation page, we strongly recommend that you type your 25-character product key to help avoid problems during activation. On the Please read the license terms page, if you accept the license terms, click I accept the license terms.Follow the instructions on each page. On the Which type of installation do you want? page, click Custom.On the Where do you want to install Windows? page, select the partition where you want to install Windows.Click Next to begin the installation. You might see a compatibility report.Follow the instructions. NoteBe sure to enable existing, or install new, antivirus software after the installation is complete.