In most cases, the cause is a driver compatibility issue. To troubleshoot a failed upgrade that has returned a result code of 0xC, analyze the extend code to determine the Windows Setup phase, and see the Resolution procedures section later in this article.
The following set of result codes are associated with Windows Setup compatibility warnings:. A list of modern setup mosetup errors with descriptions in the range is available in the Resolution procedures topic in this article.
Other result codes can be matched to the specific type of error encountered. To match a result code to an error:. Some result codes are self-explanatory, whereas others are more generic and require further analysis. In this case, the action pending is often the cleanup operation from a previous installation attempt, which can be resolved with a system reboot.
Extend codes reflect the current Windows 10 upgrade process, and might change in future releases of Windows The codes discussed in this section apply to Windows 10 version , also known as the Anniversary Update.
Extend codes can be matched to the phase and operation when an error occurred. To match an extend code to the phase and operation:. It's also possible, if your device is part of a Windows as a Service deployment ring, that your admin is intentionally slowing the rollout of updates.
Since the WaaS rollout is slow and measured to begin with, all devices will not receive the update on the same day. If you see a Windows Update error code in the Settings app in Windows 10, see the following table. Quite possible that you will find the appropriate description for that error.
Review KB for instructions to resolve the issue. Source: Microsoft. Winaero greatly relies on your support.
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Follow him on Telegram , Twitter , and YouTube. This could indicate that an incompatible app installed on your PC is blocking the upgrade process from completing.
Check to make sure that any incompatible apps are uninstalled and then try upgrading again. A cleanup operation from a previous installation attempt is still pending, and a system restart is required to continue the upgrade. Restart the device and run setup again. If restarting device does not resolve the issue, then use the Disk Cleanup utility and clean up the temporary files and the System files. For more information, see Disk cleanup in Windows.
A file needed by Windows Update is likely damaged or missing. Try repairing your system files: In the search box on the taskbar, type command prompt. In the window that appears, type DISM. Learn more about the minimum requirements for Windows This might indicate that a driver or other software on your PC isn't compatible with the upgrade to Windows For info about how to fix this problem, contact Microsoft support. This could mean that the upgrade process was interrupted because you accidentally restarted your PC or signed out of your PC.
Try upgrading again and make sure your PC is plugged in and stays turned on. This error might mean that your PC couldn't connect to the Windows Update servers. If you're using a VPN connection to connect to a work network, disconnect from the network and turn off the VPN software if applicable and try upgrading again.
The error could also mean there isn't enough free space in the System Reserved partition. You might be able to fix this problem by using third-party software to increase the size of the System Reserved partition. These are generic errors that might appear any time a Windows update fails. You'll need to determine the specific error code to investigate how to best resolve this problem. You can find the error code for the failed update by viewing your update history.
Look for the update that wasn't installed, note the error code, and then contact Microsoft support. Free some space on the drive and try again. Get tips for freeing up drive space. Make sure your machine meets the minimum requirements to install Windows. Disable or remove all 3rd party antivirus or antispyware from your system. Disconnect all peripheral devices that are connected to the system, except for the mouse, keyboard and display.
When you start Windows by using a normal startup, several applications and services start automatically, and then run in the background. These programs include basic system processes, antivirus software, system utility applications, and other software that has been previously installed. These applications and services can cause interference when you attempt to upgrade to the latest version of Windows To help you determine whether a background program is interfering with the upgrade, a "clean boot" may be needed.
There are many reasons why you might receive an error message when upgrading or installing Windows 10, but common errors can be fixed with a few steps that you can do on your own. Note: An upgrade takes your device from an older version of Windows, such as Windows 7 or Windows 8. To upgrade to Windows 10, you need enough space on your hard drive for the installation to take place.
To view how much hard drive space is available on your computer, select the Start button, then in the search box on the taskbar, type File Explorer known as Windows Explorer in Windows 7.
Select the Start button, then in the search box on the taskbar, type device manager. Select the Start button, then in the search box on the taskbar, type command prompt. Learn how. If you continue having problems upgrading or installing Windows 10, contact Microsoft support.
Try repairing your system files: Select the Start button and type command prompt in the search box on the taskbar. Learn more about the minimum requirements for Windows.
Select the Start button.
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