Windows 8 stuck at 34%

I just got Windows 8 and I did all of the stuff. Then when it came to installation, it got stuck at 34% complete. For the second time as well. It hasn't popped up any errors/reports either, so I don't know what to do about it. Please help, thanks.

Hi TroyPrahl,

Thank you for posting your query in Microsoft Community.

As I understand you are unable to install windows 8, and got stuck at 34%.

Before starting the troubleshooting steps, I need the required information.

1.      What version of windows version is installed in the computer?

2.      Are you using DVD or download windows 8?

3.      How are you trying to install Windows 8

4.      Is it an upgrade or a clean install?

5.      Did you run the upgrade assistant on the computer prior to the installation?

Try restarting the computer after disconnecting all the external devices except the keyboard and the mouse.
Sometimes, the setup runs in the background but appears stuck. There is a possibility that the installation might proceed further.
If the computer reverts back to the old version of Windows,

Method 1:

I would also suggest you to perform clean boot and check.

Place the computer in a clean boot state and then check if it helps. You can start Windows by using a minimal set of drivers and startup programs. This kind of startup is known as a "clean boot." A clean boot helps eliminate software conflicts.

To set the computer in clean boot, follow the steps from the link: How to perform a clean boot

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

NOTE: make sure you perform “Step 3” to reset the computer to start as usual.

Method 2:

I would also suggest you to uninstall Anti-virus program and check.

Uninstall or change a program

http://windows.microsoft.com/en-US/windows7/Uninstall-or-change-a-program

Warning: Antivirus software can help protect your computer against viruses and other security threats. In most cases, you should not disable your antivirus software. If you do have to temporarily disable it to install other software, you should re-enable it as soon as you're done. If you are connected to the Internet or a network during the time your antivirus software is disabled, your computer is vulnerable to attacks.

Note: Make sure you reinstall the antivirus after installing the Windows.

Method 3:

I would suggest you to update latest drivers for BIOS and firmware from the manufacture of the computer.

Modifying BIOS/ complementary metal oxide semiconductor (CMOS) settings incorrectly can causeserious problems that may prevent your computer from booting properly. Microsoft cannot guarantee that any problems resulting from the configuring of BIOS/CMOS settings can be solved. Modifications of the settings are at your own risk. 

Method 4:

I would also suggest you to run the System Update Readiness Tool

System Update Readiness Tool fixes Windows Update errors in Windows 8, Windows 7, Windows Vista, Windows Server 2008 R2, and Windows Server 2008

http://support.microsoft.com/kb/947821

Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:   (http://support.microsoft.com/kb/322756/ ) How to back up and restore the registry in Windows

http://support.microsoft.com/kb/322756

Method 3:

Make sure the computer is compatible to Windows 8

Windows 8 system requirements

http://windows.microsoft.com/en-US/windows-8/system-requirements

Download and run the Windows 8 Upgrade Assistant

http://windows.microsoft.com/en-US/windows-8/upgrade-to-windows-8

 

Please perform these recommended steps, review the additional information provided and post back if you are still experience the issue. I will be glad to provide you with additional options available that you can utilize to get this resolved.

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Well, it was going to be a clean boot, then my computer froze so I restarted it. I never did a back up or a restore point. Now all it gets to is a problem solving box, and not to the desktop. I can't do anything. If I format the drive, all the data including Windows 7 (what is on it prior to upgrade). So I don't know what to do.

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Dear Nithyananda,

I am facing the same issue. The screen is stuck at 'Preparing 34%'. I have tried it on 'Clean boot' as suggested by you. Another MicroSoft Tech support rep suggested that I disable 'Wifi' in BIOS and restart. I have tried that as well. The anti-virus is disabled. I ran the System update readiness tool as well. The issue is not resolved yet. What more can be done to install 8.1? Thanks.
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Last updated February 1, 2021 Views 903 Applies to: