For error code 0x800f0805

See video guide here:  https://www.youtube.com/watch?v=kZF8QXll0Lk

Open Command Prompt with admin permission by typing CMD in the Run (Win + R) prompt,  followed by pressing the enter key. Then execute the command dism /online /get-targeteditions and it will reveal the list of Windows edition you can upgrade to from the current version.

C:\Windows\system32>dism /online /get-targeteditions

Editions that can be upgraded to:

Target Edition : ProfessionalEducation
Target Edition : ProfessionalWorkstation
Target Edition : Education
Target Edition : ProfessionalCountrySpecific
Target Edition : ProfessionalSingleLanguage
Target Edition : ServerRdsh
Target Edition : IoTEnterprise
Target Edition : Enterprise

The operation completed successfully.

Next, to activate, we will use the SLMGR tool (Software Licensing Management Tool) from Microsoft to activate Windows from the command prompt. Type the command prompt:

slmgr.vbs /ipk <your 25-digit product key>

If the process is a success, go back to the Activation tab, and check if your version has changed.  In case you get an error message—

Error: 0x800f0805 . The Windows edition was not detected. Check that the specified image is a valid Windows operating system image

All you need to do is restart your computer and try to activate it again, and it should work.

Most of the time, a restart can solve a lot of problems.

Windows  10 Update Error 0x800f0805

Option 1:  https://support.microsoft.com/en-us/help/4027322/windows-update-troubleshooter

Option 2:  https://www.youtube.com/watch?v=7dQ-QFxXvfA 

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How to troubleshoot Product Activation in Windows 10

Technical Level : Basic

Summary

This article provides information and resources for troubleshooting Product Activation in Windows 10.

How to fix error 0xc004c060 - Contact our support team

How to fix error 0xc803fa067 - Upgrade Win 10 Home to Win 10 Pro -  CLICK HERE

How to fix error 0xc004f050 - Upgrade Win 10 Home to Win 10 Pro -  CLICK HERE

How to fix error 0xC004C003 -  See below:

Step 1: Type cmd in the Search bar and then right-click Command Prompt to choose Run as administrator.

Step 2: Type slmgr.vbs –rearm in the window and then press Enter.

 

 

Step 3: Restart your system and then check if your Windows is activated.

Details

If you are running Windows 10 Anniversary Update and you are experiencing activation problems, please check out the following article for tips how to resolve them.

 

Use a Digital License to Manage and Activate Windows 10 Anniversary Update

 

For information about Finding Your Windows 10 Product key, see:

How to Find your Windows 10 Product Key - groovyPost

 

 

Warning: There are "Tech Support Scams" pretending to be Windows 10 Activation Technologies. Please be vigilant. Learn more in the following article:

 

PSA: Beware of Windows 10 Activation Tech Support Scams

 

If you are running the Windows 10 July Public Build 10240 (1507), please review the following article for troubleshooting information:

 

How to Fix Windows 10 Product Key Activation Not Working

 

Please review the latest Wiki Article about using your Windows 7, Windows 8.0 or Windows 8.1 product key to Install and Activate using the Windows 10 November Update (1511) build 10586. See link to article above which discusses issues  activating the initial July build 10240.

 

How to install and activate Windows 10 using your Windows 7 or Windows 8 product key

 

Top reasons Windows 10 fails activate:

• Not connected to the Internet
• Antivirus or Firewall utilities might be blocking product activation
• Your computer is behind a proxy server, disabling the proxy temporarily or using chat support can resolve this
• Your computer did not upgrade from a genuine version.
• The wrong edition is installed.
• Your computer is running a Volume License Client requiring access to a Key Management Server (KMS) to activate. This can usually be performed by logging onto your company's domain or VPN.

 

Update:

After upgrading to Windows 10, you cannot use your Windows 7 or Windows 8/8.1 product key.

 

Click Do this Later.

 

 

Verify if you have the latest Windows 10 build installed.

How to verify if you downloaded or installed the Windows 10

 

If you do, then all you need to do is change the product key using your Windows 7 or 8 product key:

Click Start > Settings > Update & security > Activation > Change the product key then enter the new product key then click Next to Activate

 

 

If you don't have the November Update or later version installed, download it then perform a repair upgrade:

How to download official Windows 10 ISO files

 

then

How to: perform a repair upgrade using the Windows 10 ISO file

 

also review

How to install and activate Windows 10 using your Windows 7 or Windows 8 product key

 

 

 

Windows 8.0, Windows 8.1 or Windows 10 came preinstalled on my computer, how do I find the product key?

 

In Windows 8.0, Windows 8.1 

Press Windows key + X

Click Command Prompt (admin)

 

 

In Windows 10:

Press Windows key + X

Click Windows PowerShell (admin)

 

Enter the following command:

 

 

wmic path SoftwareLicensingService get OA3xOriginalProductKey

Hit Enter

The product key will be revealed, copy the product key then enter it

 

Click Start > Settings > Update & security > Activation > Change the product key then enter the new product key then click Next to Activate

 

If you are unable to activate Windows 10 after all the above and you are certain you have the correct edition installed, then please attempt chat support: