Run Wizard Error: 0X80040154 - Class not registered

Question

Run Wizard Error: 0X80040154 - Class not registered

Anonymous

In Control Panel, Network and Internet, I click at 'Connect to the Internet' under Internet Options a pop-up show an error message 'Run Wizard Error: 0X80040154 - Class not registered' appeared. This also happen when I clicked 'Add a device to the network'. I also cannot view available wireless network, therefore my computer cannot access internet via wireless connection.

I didn't remember when this first happen, maybe a month ago. During that period, I make several changes to my computer such as install/uninstall Adobe Dreamweaver, Flash and Photoshop, install ACDsee.

I already tried to rectify the problem using System Restore.

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Answer accepted by question author

Anonymous

Hi Leha Leman,

Welcome to Microsoft Windows Vista Community site. I would suggest you to try out these options

**Option 1:**You can try running the System File Checker, this will scan protected system files and replace incorrect versions, with the correct Microsoft versions of the files.

Open an elevated command prompt. To do this, click Start, click All Programs, click Accessories, right-click Command Prompt, and then click Run as administrator. If you are prompted for an administrator password or for a confirmation, type the password, or click Allow.

Type the following command, and then press ENTER: sfc /scannow

**Option 2:**The issue may be caused also by your security program such an anti-virus or a Windows Firewall /Defender which might have conflicting settings as to not to perform certain tasks. I suggest that you temporary disable the anti-virus and firewall and check the result again. You would need to turn on the security programs again which you had disabled

**Option 3:**To check if a third party application is a cause, follow this link (http://windows.microsoft.com/en-us/windows-vista/Advanced-startup-options-including-safe-mode) for this Boot to the desktop in Safe Mode with Networking option and check if this issues still persists, if the issue is resolved, you need to perform a Clean Boot by following the steps mentioned in the following KB article to narrow down the exact source and isolate it:

http://support.microsoft.com/kb/929135

**Option 4:**If that doesn’t help, you may need to do an in-place upgrade or a reinstall.

An in-place upgrade will essentially repair Windows Vista and retain your applications, files, and settings as they were in your previous edition of Windows. If you have installed Service Pack 1 for Windows Vista and your original Windows Vista DVD does not include this Service Pack, then the Upgrade option will be disabled, thus preventing you from doing an in place upgrade you will need to Uninstall Service Pack 1 from your PC prior to attempting the upgrade.

Note: After performing In-Place Upgrade, your personal data and installed programs will not be removed but we may need to run Windows Update to install all the available updates for your system to update these system files to the current version. This troubleshooting process is time consuming and may take several hours to complete.

If you would like to perform the In-place Upgrade, refer to the following steps:

1. Start the computer by using the current Operating System.

2. Insert the Windows Vista DVD in the computer's DVD drive.

3. Use one of the following procedures, as appropriate:

· If Windows automatically detects the DVD, the Install now screen appears. Click Install now.

· If Windows does not automatically detect the DVD, follow these steps:

o Click Start, click Run, type Drive:\setup.exe, and then click OK. Note Drive is the drive letter of the computer's DVD drive.

o Click Install now.

4. When you reach the "Which type of installation do you want?" screen, click Upgrade to upgrade the current operating system to Windows Vista.

5. Please run Windows Update again as you will need to download and install the most current updates.

If you do not have the Windows Vista Installation DVD, I suggest contacting your PC manufacturer or our Customer Service to order a backup disk.

Let me know if that does or does not work. Good luck!

Hope this is helpful.

Thanks and Regards,

Vijay K - Microsoft Support

Visit ourMicrosoft Answers Feedback Forumand let us know what you think.

[If this post helps to resolve your issue, please click the "Mark as Answer" or "Helpful" button at the top of this message. By marking a post as Answered, or Helpful you help others find the answer faster.]

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2 additional answers

Answer 1

Hi Leha,

Thanks for your response. If you do not have a DVD you can contact your OEM or order one from the site below. Charges may or may not occur depending on who your OEM is.

http://support.microsoft.com/kb/326246

Hope this helps!

Shawn - Support Engineer - MCP, MCDST

Microsoft Answers Support Engineer

Visit our Microsoft Answers Feedback Forum and let us know what you think

Answer 2

Hi Leha Leman,

Welcome to Microsoft Windows Vista Community site. I would suggest you to try out these options

**Option 1:**You can try running the System File Checker, this will scan protected system files and replace incorrect versions, with the correct Microsoft versions of the files.

Open an elevated command prompt. To do this, click Start, click All Programs, click Accessories, right-click Command Prompt, and then click Run as administrator. If you are prompted for an administrator password or for a confirmation, type the password, or click Allow.

Type the following command, and then press ENTER: sfc /scannow

**Option 2:**The issue may be caused also by your security program such an anti-virus or a Windows Firewall /Defender which might have conflicting settings as to not to perform certain tasks. I suggest that you temporary disable the anti-virus and firewall and check the result again. You would need to turn on the security programs again which you had disabled

**Option 3:**To check if a third party application is a cause, follow this link (http://windows.microsoft.com/en-us/windows-vista/Advanced-startup-options-including-safe-mode) for this Boot to the desktop in Safe Mode with Networking option and check if this issues still persists, if the issue is resolved, you need to perform a Clean Boot by following the steps mentioned in the following KB article to narrow down the exact source and isolate it:

http://support.microsoft.com/kb/929135

**Option 4:**If that doesn’t help, you may need to do an in-place upgrade or a reinstall.

An in-place upgrade will essentially repair Windows Vista and retain your applications, files, and settings as they were in your previous edition of Windows. If you have installed Service Pack 1 for Windows Vista and your original Windows Vista DVD does not include this Service Pack, then the Upgrade option will be disabled, thus preventing you from doing an in place upgrade you will need to Uninstall Service Pack 1 from your PC prior to attempting the upgrade.

Note: After performing In-Place Upgrade, your personal data and installed programs will not be removed but we may need to run Windows Update to install all the available updates for your system to update these system files to the current version. This troubleshooting process is time consuming and may take several hours to complete.

If you would like to perform the In-place Upgrade, refer to the following steps:

1.       Start the computer by using the current Operating System.

2.       Insert the Windows Vista DVD in the computer's DVD drive.

3.       Use one of the following procedures, as appropriate:

          ·         If Windows automatically detects the DVD, the Install now screen appears. Click Install now.

          ·         If Windows does not automatically detect the DVD, follow these steps:

                    o   Click Start, click Run, type Drive:\setup.exe, and then click OK. Note Drive is the drive letter of the computer's DVD drive.

                    o   Click Install now.

4.       When you reach the "Which type of installation do you want?" screen, click Upgrade to upgrade the current operating system to Windows Vista.

5.       Please run Windows Update again as you will need to download and install the most current updates.

If you do not have the Windows Vista Installation DVD, I suggest contacting your PC manufacturer or our Customer Service to order a backup disk.

Let me know if that does or does not work. Good luck!

Hope this is helpful.

Thanks and Regards,

Vijay K - Microsoft Support

Visit ourMicrosoft Answers Feedback Forumand let us know what you think.

[If this post helps to resolve your issue, please click the "Mark as Answer" or "Helpful" button at the top of this message. By marking a post as Answered, or Helpful you help others find the answer faster.]

Thanks Mr Vijay K for your respond.

As for your suggestions;

Option 1: The result was ' Windows Resource Protection found corrupt files but was unable to fix some of them. ... C:\Windows\Logs\CBS\CBS.log ' When I tried to see the CBS.log, a popup shows ' Access is denied'.

Option 2: The problem still not fixed.

Option 3: Also the problem still there.

Option 4: As I don't have Installation DVD, I can't perform the option 4. If I order a backup disk, will I be charged any fee?

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Run Wizard Error: 0X80040154 - Class not registered

2 additional answers