Steps to take before installing Windows 7 Service Pack 1
How to increase your chances of installing Service Pack 1 successfully.
http://www.pagestart.com/win7sp1steps021611.html
Run the SFC /SCANNOW command. This will check and repair if necessary any critical Windows system files.
Click on Start/All programs/Accessories then
Right click on Command Prompt option and select 'Run as administrator'.
At the command prompt enter: SFC /SCANNOW
Run the System Update Readiness Tool:
http://support.microsoft.com/kb/947821/en-us
Microsoft released the System Update Readiness Tool to resolve
certain conditions that could cause installing updates and other software not to work.
You do not have to manually run this tool. This tool is offered automatically
through Windows Update to computers that have a condition that the tool could resolve.
Try Renamng the 'Software Distribution folder':
Click the Start Menu and enter: %windir% then press 'OK'
Next: Locate the SoftwareDistribution folder
Right click on the 'SoftwareDistribution' folder and then select the 'Rename' option.
Rename the folder to: SoftwareDistributionOld and press the 'ENTER' key.
Windows will create a new 'SoftwareDistribution' folder when needed.
Security Essentials warning: http://windows.microsoft.com/en-us/windows7/why-am-i-receiving-a-message-about-microsoft-security-essentials-or-microsoft-forefront-client-security-when-installing-a-service-pack
Also: Steps to take before installing Win7 SP1
http://support.microsoft.com/kb/2505743
Free unlimited installation and compatibility support is available
for issues related to Windows 7 Service Packs:
Note: Availability of chat, phone or e-mail support differs depending on your geographic location.
Some issues may require more advanced support for which there may be a charge: https://support.microsoft.com/oas/default.aspx?&gprid=14496&&st=1&wfxredirect=1&sd=gn
Windows 7 - Service Pack 1 – How to install Step by Step
http://www.pagestart.com/win7sp1sbs02201101.html
Learn how to install Win 7 SP1
http://windows.microsoft.com/en-US/windows7/learn-how-to-install-windows-7-service-pack-1-sp1
Win7 SP1: Installation tips
http://windowsteamblog.com/windows/b/bloggingwindows/archive/2011/02/16/windows-7-sp1-follow-up.aspx
Troubleshoot problems installing a service pack for Windows 7
http://windows.microsoft.com/troubleshootwindows7sp1
-------------- An alternative method to install SP1 without the need to use Windows Update ---------------
Instead of using Windows Update try the SP1 Download:
http://www.microsoft.com/downloads/en/details.aspx?FamilyID=c3202ce6-4056-4059-8a1b-3a9b77cdfdda
For 32-Bit Windows 7 download: windows6.1-KB976932-X86.exe
For 64-Bit Windows 7 download: windows6.1-KB976932-X64.exe
Note: Do not select 'Run' after clicking the Download button.
You should save this file to a unique folder in the Windows 7 drive/partition.
For more information read: Windows 7 - Service Pack 1 – How to install Step by Step
http://www.pagestart.com/win7sp1sbs02201101.html
J W Stuart: http://www.pagestart.com