Fix: Installation Was Not Successful When Installing Windows 7 SP1

Posted June 24, 2010 – 6:05 pm in: Windows 7 Guides

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As we all know, SP1 beta for Windows 7 and Windows Server 2008 R2 has already been released to a limited number of testers and the public beta will be available by the end of July. If you get Installation was not successful error message while installing the service pack, here are the steps that might solve the issue:

Method 1:

# Download and run System Update Readiness Tool. The System Update Readiness Tool can help fix problems that might prevent Windows updates and service packs from installing.

# Try to install the service pack now. If you are still getting the same Installation was not successful error follow method 2.

Method 2:

1. Close all programs, and then restart your computer.

2. After restarting, turn off all antivirus and antispyware programs that might run during the startup process.