When you try to install Windows Vista Service Pack 2 (SP2),
you receive the following error message:
installation cannot continue
One or more system components that the
service pack requires are missing.
This problem occurs because system components that are
required to install Windows Vista SP2 are not present on your
However, a common reason for this problem is that vLite was
used to customize the Windows Vista installation and some required system
components were removed.
To resolve this problem, use genuine Microsoft software
media to reinstall Windows Vista with Service Pack 1 and then install Windows
For more information about genuine Microsoft software, see
software: frequently asked questions
Reinstalling Windows on a computer that is running a retail version of Windows Vista
If you purchased a retail copy of Windows Vista, you can reinstall
Vista from the Vista installation DVD.Important
The following steps are recommended for advanced computer users.
If you are a beginning user or do not feel comfortable reinstalling Windows,
you might want to ask help from a friend or contact Microsoft for support. For
more information, see the How to obtain Windows Vista service pack support
section in this article. There are two options for fixing this problem:
- An in-place upgrade to Windows Vista
- A clean reinstall of Windows Vista
With both options, you should backup your personal data to an
external source. You should also note and find any special drivers or software
that is required to use hardware devices such as video cards or printers.
Option 1: Perform an in-place upgrade to Windows Vista
Use the Windows Vista installation DVD to perform an in-place
upgrade. An in-place upgrade keeps as much of your personal data and settings
Before you perform an in-place upgrade, you should be prepared
for a worst case scenario that results in your existing data on your computer
being deleted. This data includes personal data, settings, hardware driver
information, and software programs. If a worst case scenario occurs, you may
have to reinstall all programs. Make sure that you back up personal data to
disks or to other external storage devices before you perform an in-place
upgrade. To perform an in-place upgrade, follow these steps. Note
It might help if you print these steps before you perform them.
Also, be aware that it could take a few hours to complete these steps.
- Start the computer.
- Insert the Windows Vista DVD into the DVD drive and then
close the drive tray. Wait for the Setup program to start
- If the Setup program does not start automatically, click
Drive:\setup.exe in the
Start Search box, and then press ENTER.
Collapse this imageExpand this image
Note In this step, Drive is the drive
letter of the computer’s DVD drive.
- When the "Install now" screen appears, click
Note When you receive the Get important updates for
installation message, do not click Go
- Click Upgrade when the Which type
of installation do you want screen appears.
- Follow the instructions to install Windows Vista.
- If Windows Vista is now running on your computer, you have
completed the upgrade to Windows Vista.
After the upgrade has completed, you have to activate your copy
of Windows Vista.
For more information about how to
activate Windows Vista, click the following article number to view the article
in the Microsoft Knowledge Base:
How to activate Windows Vista
Option 2: Perform a clean reinstall of Windows VistaWarning
When you perform a clean installation, you may chose to format
your drive. If you format your drive, existing data on your computer is
deleted. This data includes personal data, settings, hardware driver
information, and software programs. After you install the operating system, you
must also reinstall all programs. Before you perform a clean installation, even
if you do not format your hard driver, you should make sure that you back up
personal data to disks or other external storage devices first. For more information about how to
reinstall Windows Vista, click the following article number to view the article
in the Microsoft Knowledge Base:
How to install Windows Vista
Reinstalling Windows on a computer that is running a preinstalled (OEM) copy of Windows Vista
If your computer has a preinstalled (OEM) copy of Windows Vista,
and you receive this error, you should contact the manufacturer if you need
help resetting your computer to the original factory defaults. Resetting your
computer to the original factory defaults should also restore any system
components that are needed to install the service pack.
back up any personal data before you contact the OEM for help. Using OEM
recovery disks can sometimes cause data loss.
For more information
about how to contact your OEM, please see the documentation that was included
with your computer.
Click the following links to find more options if this article
cannot resolve your problem:
third-party products that this article discusses are manufactured by companies
that are independent of Microsoft. Microsoft makes no warranty, implied or
otherwise, about the performance or reliability of these