Question： When I tried to install these updates it gave these codes and said that Windows had encountered an unknown error.
Answer 1：
K M Boone,
First follow these steps for running The System File Checker tool:
To determine whether the issue that you are experiencing is caused by one or more system files that are used by Windows Vista, run the System File Checker tool. The System File Checker tool scans system files and replaces incorrect versions of the system files by using the correct versions.
To run the System File Checker tool, follow these steps:
- Click Start, and then type cmd in the Start Search box.
- Right-click cmd in the Programs list, and then click Run as administrator. If you are prompted for an administrator password or confirmation, type your password or click Continue
- At the command prompt, the following line, and then press ENTER: sfc /scannow
- When the scan is complete, test to see whether the issue that you are experiencing is resolved.
Test Windows Update, Does this resolve your message?
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If not let us try Resetting Windows Update Component Manually through the following steps:
Click Start, and then type cmd in the Start Search box.
Right-click cmd in the Programs list, and then click Run as administrator. If you are prompted for an administrator password or confirmation, type your password or click Continue
At the command prompt, enter the following commands (you may copy and then paste them by right clicking with your mouse and selecting paste), and then press ENTER after each:
net stop wuauserv
net stop bits
net stop cryptsvc
ren %systemroot%\System32\Catroot2 Catroot2.old
net start cryptsvc
ren %systemroot%\SoftwareDistribution SoftwareDistribution.old
regsvr32 wuapi.dll
regsvr32 wuaueng.dll
regsvr32 wucltux.dll
regsvr32 wups2.dll
regsvr32 wups.dll
regsvr32 wuwebv.dll
net start bits
net start wuauserv
net start Eventlog
exit
Reboot and try update again.
Let us know your results.
Rami
Answer 2：Rami,
OK, I tried doing it the first way that you suggested, and it told me that some files were corrupt and it could not fix it. I have not tried it the other way yet.
Kelly
Answer 3：
Kelly,
If the System File Check tool found corruption and could not fix them, then we will do a repair install to correct this. First check if the second set of instructions (Resetting Windows Update Components) is successful.
Repair Installation:
You may reinstall your copy of Vista while keeping your files, settings, and programs by performing a repair installation or an upgrade installation.
1. Insert the Windows installation disc into your computer's DVD or CD drive. You must start Windows installation while running your existing version of Windows.
2. On the Install Windows page, click Install now.
3. On the Get important updates for installation page, we recommend getting the latest updates to help ensure a successful installation and to help protect your computer against security threats. You will need an Internet connection to get installation updates.
4. On the Type your product key for activation page, we strongly recommend that you type your 25-character product key to help avoid problems during activation.
5. On the Please read the license terms page, if you accept the license terms, click I accept the license terms.
6. On the Which type of installation do you want? page, click Upgrade to begin the upgrade. You might see a compatibility report.
7. Follow the instructions.
Note: If your installation disk does not include SP1, and you are updated to it, then you will have to uninstall it before performing an upgrade install. Start -> Control Panel -> Programs -> View installed updates, then select Service Pack for Microsoft Windows and click Uninstall.
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It is always advisable to backup any and all important data before proceeding with any major changes to your system. Please see: Methods for backing up your files.
Always make sure you have the means to reinstall your programs, either through an install disk or having access to the installation files.
Rami
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