Build 14291 will not install

Hi Christopher,

Thank you for posting your query in Microsoft Community. We understand the inconvenience caused and will assist you.

I suggest you to follow the methods provided below and check if it helps.

Method 1: Run the Windows Update troubleshooter.

1. Type “Troubleshooting” in search box and press Enter.

2. Click on “View All” option on top left pane.

3. Select “Windows Update” from the list and follow the prompts for troubleshooting.

If the issue still persists,

Method 2: Manually reset the Windows Updates Components and then reinitiate the Windows Update process.

Resetting Windows Update Components will fix corrupt Windows Update Components and help you to install the Windows Updates quickly. 

Please follow the below steps to reset the Windows Updates Components:

1. Press Windows Key + X on the keyboard and then select “Command Prompt (Admin)” from the menu.

2. Stop the BITS, Cryptographic, MSI Installer and the Windows Update Services. To do this, type the following commands at a command prompt. Press the “ENTER” key after you type each command.

                           net stop wuauserv

                           net stop cryptSvc

                           net stop bits

                           net stop msiserver

3. Now rename the SoftwareDistribution and Catroot2 folder. You can do this by typing the following commands in the Command Prompt. Press the “ENTER” key after you type each command.

                          ren C:\Windows\SoftwareDistribution SoftwareDistribution.old

                          ren C:\Windows\System32\catroot2 Catroot2.old

4. Now, let’s restart the BITS, Cryptographic, MSI Installer and the Windows Update Services. Type the following commands in the Command Prompt for this. Press the ENTER key after you type each command.

                        net start wuauserv

                        net start cryptSvc

                        net start bits

                        net start msiserver

5. Type Exit in the Command Prompt to close it and then restart the computer.

6. After restarting the computer, now retry to install Windows Updates.

Hope the information is helpful. Feel free to write to us for any other assistance with Windows and we’ll be glad to assist you.

2 issues i run into when doing method 2:

1. Not as much an issue as a question: typing the commend net stop msiserver, results in being told the service wasn't running to begin with. Is than an issue?
2. Trying to rename SoftwareDistribution i get the Access is denied. message. (I am running from an elevated state :))

Just a short suggestion to optimize your guide. You don't neeed to restart the services, if the next thing you are going to do, is restart the device. The services will automatically restart during a restart :)

Someone reported that the install would fail with Xbox Controller plug in.

有人291更新不成功吗-远景论坛-微软极客社区 (It's a Chinese forum)

If you have Xbox Controller with your PC, try to unplug it and upgrade again.

How much free space on your (C:) drive?  Should be 20+GB

Thank you!!  that's exactly what it was.  I unplugged my xbox controller, and the install went without a hitch. Just make sure you don't plug it back in after the install is finished or your moniter will go blank and flash at you       

Method 1:

said there was a problem and fixed. However at the end it restored my old version back.

Method 2:

Says service is not running:

net stop bits

Says the folder is in use:

ren C:\Windows\System32\catroot2 Catroot2.old

Running all at elevated access.

Hi,

Thank you for getting back to us with the status. We apologize for the delay in response.

I suggest you to perform a Repair upgrade using Windows 10 ISO by following the steps provided by Andre Da Costa in the link provided below and check if it helps.

http://answers.microsoft.com/en-us/insider/wiki/insider_wintp-insider_install/how-to-perform-a-repair-upgrade-using-the-windows/35160fbe-9352-4e70-9887-f40096ec3085 

Hope this helps. Keep us posted on the status for further assistance. 

Can't keep anything because it says Windows might be installed on a unsupported directory?

One thing is I have moved the location of several folders to another drive; Desktop, Documents, Downloads, Favorites, Links, Music, Pictures, and Videos.

Hasn't caused a problem in past insiders builds.