Code: 80040154 Windows Update encountered an unknown error

Asked By 20 points N/A Posted on -
qa-featured

Hello,

When I am using Windows Update, the error code 80040154 appears; also, I get the following message "Class Not Registered".

Windows Update, the error code 80040154 appears

Windows Update

windows could not search or new updates

An error occurred while checking for new updates for your computer.

Error(s) found:

Code 80040154 Windows Update encountered an unknown error.

Get help with this error

Most recent check for updates 4/17/2010 at 1:43 PM

Updates were installed 4/17/2010 at 2:17 PM

View update history

You receivv update For Windows and other products from Microsoft Update

Find out more about from Microsoft Update. Click here for details.

What should I do to solve this? Need your help.

Thanks in advance.

SHARE
Best Answer by Perry Deborah
Answered By 0 points N/A #96434

Code: 80040154 Windows Update encountered an unknown error

qa-featured

This is a windows problem that can be fixed in the following way:

1. Go to http://support.microsoft.com/kb/971058

2. After login to the web site you will see a Microsoft Fix it dialog box.

3. On the bottom right corner of the box , you will see Run now button, click on it and download the Microsoft Fix it Application.

4. After downloading run the program, it will as you to restart the computer.

5. Restart and the application will fix the program.

Best Answer
Best Answer
Answered By 0 points N/A #96436

Code: 80040154 Windows Update encountered an unknown error

qa-featured

Hello!

If you haven't already submitted a support case and is still getting this error, here are some things you can try. You need to run these tools and see if any of them report errors that can't be fixed.

To fix this problem, you have to try the following:

  1. You have to check Disk Error first.
  2. You have to check the system file checker.
  3. You have to check the system update readiness tool

If the above solutions come up as clean, you have to scan your system with another anti-virus or anti-malware software. It is highly recommended to use Microsoft security essential from Microsoft Corporation.

Answered By 20 points N/A #96438

Code: 80040154 Windows Update encountered an unknown error

qa-featured

Hi Emimayer,

The error means there is a problem with the permissions on the registry. The simplest way to fix this is to install the software as the administrator, but you need to modify the permissions on the registry key.

Check out this Techyv post for more information regarding on your issue.

Error code 80040154 appears when using Windows Update

Answered By 566200 points N/A #287328

Code: 80040154 Windows Update encountered an unknown error

qa-featured

It seems that error is pretty common on Windows users that have active Windows support. To see what’s causing the problem, you need to perform some checking first. First thing to check is your hard drive. It needs to be checked for errors and other file system problems. Download and install PC Tools Performance Toolkit. Follow the instructions to download and unpack the file.

Once installed, start PC Tools then go to “Recovery” tab and click “Repair Drives”.

Under “Select Drive Operation”, select “Surface Scan” to perform a complete check on the drive and then check “Perform on reboot”. Since the problem is with the operating system because of the failed Windows update, the concerned drive is the system drive or drive C. From the list of drives, select drive C then click “Start” and then “Continue”.

Close PC Tools then restart the computer to begin the test. After the test, try updating Windows again from the Windows Update feature. See if it updates successfully. If the update fails again, try running the System File Checker tool. Click “Start”, “All Programs”, “Accessories”, right-click “Command Prompt” and select “Run as administrator”. Enter your administrator password when you are prompted to continue.

In the command prompt, type without quotes “sfc /scannow” then hit Enter. If you are prompted to insert the Windows setup CD, insert it on your optical drive and continue. When it is finished, restart your computer and try running Windows Update again. If this doesn’t work, download and install the System Update Readiness tool according to your operating system:

Once the tool is installed, run Windows Update again then see if it works.

Login/Register to Answer

Related Questions