What if Win7 SP1 is not found in Windows update?

Win7 SP1 official version has been released for a long time, Win7 SP2 also in the brewing should soon be able to see the beta version. But some friends still want to upgrade through Windows Update online, encountered a problem: Windows Automatic Update can not find Win7 SP1, after all, direct download SP1 package too large and too slow, online upgrade is indeed the most worry the most reliable one.

What the hell is going on here? Soft media Small series in Lenovo's technical support website saw an article, hope to be helpful to everyone.

Problem Description:

When you use Windows Update to check for updates, the system does not provide the option to download windows 7 Service Pack 1 (SP1).

Problem Reason:

1. Windows 7 SP1 is installed, or the pre-release version of Windows 7 SP1 (Windows 7 SP1 RC) is not uninstalled

2. Pre-update patch not installed in place

3. Conflicts between programs or missing system files

Solution:

1. Uninstall Windows 7 SP1 RC

If you have already installed Windows 7 SP1, the Windows 7 SP1 item will not be listed in the list of available updates, which is not considered. If Windows 7 SP1 update cannot be displayed because the Windows 7 SP1 RC is installed, you can uninstall it.

The safest approach is to use programs and features.

In the Start search box, type: View installed updates, enter.

Locate Microsoft Windows Service Pack (KB 976932), then right-click and select Uninstall.

You can also uninstall SP1 using a command prompt. In the Start search box, type: Command prompt, then right-click, and select Run as Administrator.

(This step requires administrator privileges, and if you are prompted for an administrator password or confirmation, type the password or provide confirmation.) )

In the Command window, type: wusa.exe/uninstall/kb:976932. Press ENTER to perform.

2. Pre-installation patch

Updating KB976902 is a prerequisite for installing a Service Pack. Check it out and fill it up without pretending.

In the Start search box, type: Check for updates, enter.

Click Online to check for updates from Microsoft update.

Expand XX Critical Update available, locate and select the Windows7 update KB976902, and press OK to install.

If you are prompted to restart your computer after the installation is complete, restart.

Check to see if Windows 7 SP1 is present in Windows Update. If not, download windows 7 SP1 from the Microsoft Download Center directly.

3, program conflicts or missing system files

Such situations are more complex and need to be analysed on the basis of specific circumstances, citing only two examples here:

1 Application classes: Some programs can also cause this problem, such as when your computer is running Safecentral version 2.9.0.0 or earlier, you must first update safecentral before you can install Windows 7SP1.

2 Driver class: Some drivers can also cause this problem, such as when you use one of the following Intel integrated graphics drivers, Windows Update does not provide you with an update KB2454826 (if the update KB2454826 is not installed, Windows 7 SP1 Will not appear in Windows Update):

-Igdkmd32.sys (32-bit), version 8.15.10.2104 to 8.15.10.2141

-Igdkmd64.sys (64-bit), version 8.15.10.2104 to 8.15.10.2141