55. Uninstall Windows 7 Service Pack 1
There shouldn't be any real need to uninstall Windows Service
Pack 1 unless you encounter problems with your current hardware
after the service pack has been installed. If such problems do occur
it may be necessary to uninstall Windows 7 Service Pack 1 to enable
you to troubleshoot any hardware problems.
It will only be possible to uninstall Windows 7 Service Pack 1 if
you installed the service pack via Windows Updates or if you
downloaded and installed the service pack from the Microsoft
download site.
You should be aware that if your PC came preinstalled
with Windows 7 SP1 you will not be able to uninstall the service
pack.
If, however, you chose to remove the Windows Service Pack 7
backup files, the only way you can uninstall the service pack would
be to re-install the service pack once again and then uninstall it.
You can re-install Windows Service Pack 1 by downloading the full
version ISO. For further details see
53. Install
Windows 7 Service Pack 1.
There are two option for uninstalling Windows Service Pack 1:
- Via Programs and Features
- Via the Command Prompt
Programs and Features Option
- Click the Start button and then, on the
right of the start
menu, click Control Panel.
Fig 55-1 Windows Start Menu
- In the Control Panel window, Click the
Programs and Features
Icon.
Fig: 55-2 Click the Programs and Features icon
- In the Programs and Features window look to the
left of the
window and you will see a Blue margin. Click on the
View
Installed Updates link.
Fig: 55-3 Click the View Installed Updates link to see a list of
currently installed updates
- A list of currently installed updates will now appear.
- Look down the list of installed updates until you come to
Microsoft Windows section.
- In the Microsoft Windows section look for Service Pack
for Microsoft Windows (KB 976932).
- Right Click on the Service Pack for Microsoft Windows (KB
976932) and then click on Uninstall.
Fig: 55-4 Right Click on the Service Pack for Microsoft Windows (KB
976932) option
- A message will now appear asking if you want to uninstall
this update. Click Yes to continue.
Fig 55-5 Click Yes to start the uninstall
- Another message will inform you that the update is being
uninstalled. The actually uninstall could take several minutes
so be patient.
Fig 55-6 The progress bar will show you how the uninstall is
progressing
- Once the update has been uninstalled you will be asked to
restart your computer. To continue, click the
Restart Now
button.
Fig: 55-7 Click the Restart Now button to continue
- Windows will now start to configure the service pack
uninstall.
Fig: 55-8 Configuring the service pack
- Once the configuration has reached 30% your computer will
Restart.
Fig: 55-9 Windows is now shutting down
- On Restart the Windows Logo will appear.
Fig: 55-10 Starting Windows
- Windows will now start to configure once again. During this
process Do Not turn off your computer.
Fig: 55-11 Preparing to configure windows
- The Configuring Service Pack window displays its progress as
the necessary files are re-installed.
Fig: 55-12 Windows is now configuring the service pack
- Once configuration has completed the Windows Log On
screen
will appear
.
Fig 55-13 You can now Log on to windows
- Windows Service Pack 1 has now been uninstalled.
Command Prompt Option
To uninstall Windows Service Pack 1 using the Command Prompt
proceed as follows:
- Click the Start Button.
- In the Start Search Box, type: CMD
- The Command prompt option should appear at the top of the
start menu search list.
- Right click on the Command Prompt option and, from the
drop
down menu, click on Run as Administrator.
- If you are not the Administrator you will be asked to
provide the administrator password before you can continue.
- In the command prompt window type: wusa.exe /uninstall
/kb:976932 and press the Enter key.
-
Windows Service Pack 1 should now start to uninstall.