How to fix a broken Windows 10 April 2018 Update installation

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Microsoft recently acknowledged a
bug in Windows 10 April 2018 Update could brick some PCs
and push systems to a black or blank desktop with no easy way
to recover the corrupted installation. While the newest version
of Windows 10 offers a smooth experience on most of the
computers, but it has proved to be quite a nightmare for some
users.

Microsoft does conduct several tests before pushing Windows 10
updates to users worldwide, but updates could be troublesome on
some devices due to compatibility issues with apps or drivers,
and of course, it’s pretty hard to tell what exactly happened
this time.

Earlier this month, thousands of users reported that
the patch for Windows 10 April 2018 Update is causing a black
screen on some computers. Later some users reported that the
systems booted to a screen with message ‘desktop
is unavailable’. In both cases, the users are recommended
to reinstall Windows 10.

Microsoft in its community forum
has also admitted that there are two critical bugs in
Windows 10 April 2018 Update (version 1803):

  • A blank screen rendered with a Recycle Bin and a Taskbar:
    Microsoft explains that a bug in the update could boot the
    system to a black screen and Windows cannot be restored easily.
  • Setup stuck at “Choose your keyboard layout” screen: In
    some cases, Windows boot to “choose your keyboard layout”
    and the process repeats after selecting the keyboard layout.
    The troubleshooting options doesn’t make any difference.

“Microsoft is currently investigating potential solutions and
workarounds and will update this thread once they are
available. If you have another working device available to you,
you may wish to wait until another solution becomes available,”
the company said.

Stuck at “Choose your keyboard layout” screen after installing
Windows 10 April 2018 Update

If your system just booted to finish Windows 10 April 2018
Update installation but is stuck at “Choose your keyboard
layout”, you can easily restore your computer to the Windows 10
Fall Creators Update.

Rollback without losing data

  • Select a keyboard layout (the US or UK) at the “Choose your
    keyboard layout” screen.
  • At the “Choose an option screen”, verify that ‘Continue –
    Exit and continue to Windows rollback’ is present on the top
    left. If it’s not, do not follow the below steps and skip to
    the second method.
  • Select Troubleshoot -> Command Prompt, and type
    bcdedit“.
  • The 4 entries will be displayed, and it will have an
    attribute called “device” or
    bootstatdevice”. The value would be similar to
    something like “partition=E:“. The letter drive would
    be different on your system.
  • In this case, you would need to type E:
  • Press enter.
  • Type the following command and press enter again.

copy
Windows.oldWindowsSystem32OOBESetupPlatformSetupPlatform.exe
$WINDOWS.~BTSources

  • The output should be “1 file(s) copied” but if
    this is not the case, please do not proceed further and skip to
    method 2 instead.
  • Type “exit” and press enter in Command prompt.
  • You’ll return to the Choose an option screen, and
    you now select Continue – Exit and continue to Windows Rollback
    option.

The system will finally restore to the previous version of
Windows 10. Microsoft says that users should only attempt to
install the Windows 10 April 2018 Update again when the
computer Windows notifies you that the update is ready for
your device.

If your computer fails to meet the aforementioned requirements,
you can follow the steps described below.

Fix “Desktop is unavailable” issue after upgrading to Windows
10 April 2018 Update

If the system shows the message
“C:WINDOWSsystem32configsystemprofileDesktop is
unavailable” after installing Windows 10 April 2018 Update or
your PC is stuck at “choose your keyboard layout” screen, you
may need to boot from a USB drive and reinstall the OS.

Windows 10 Recovery screen

First and foremost, you would need a blank pendrive with
8GB of storage and another Windows PC. In this method, you may
need to create a bootable drive on your spare computer and
restore the broken PC.

  • Download Media Creation Tool from here and run it on
    your second PC.
  • Open Windows Media Creation Tool and select the
    option Create installation media for another PC.
  • Follow the on-screen instructions.
  • Boot your broken computer into recovery mode. You can do sy
    by continuously restarting the PC with the power button until
    it boots to a blue screen with recovery options.
  • At the Choose your keyboard layout screen, choose
    your keyboard layout and at the Choose an option screen,
    select Troubleshoot.
  • Select Command Prompt.
  • Type C: and press enter.
  • Type the following command and press enter.

Ren Windows.old Windows.old.bak

  • This command would make sure that your personal files are
    safe.
  • In the cmd.exe window, type exit and
    press Enter.
  • At Choose an option screen, select Use
    another operating system.
  • Select the second option called Windows 10 on
    volume X
    . Note that X is a variable and it would be a
    number on your computer.
  • Windows will boot to the desktop, and the following
    error message will be displayed.

C:WINDOWSsystem32configsystemprofileDesktop is unavailable

  • Right-click any blank area on the taskbar, and then select
    Task Manager.
  • Click “more details” if the Task Manager doesn’t appear in
    full screen.
  • Click File -> Run new task.
  • Check the box called Create this task with
    administrator privileges.
  • Select Browse.
  • Insert the bootable drive that you created earlier.
  • Navigate to your USB drive and run
    the setup.exe.
  • Uncheck the boxes for “check for new updates” and “help
    make this version better”.
  • Your PC will be upgraded to Windows 10 April 2018 Update.
  • You can find your files from the previous installation in
    the “Windows.old.bak” located in C drive.

Microsoft is investigating the reports and it appears that only
a small subset of users are affected. You can wait always for
Microsoft to ship a fix, which basically means that you need to
leave your computer as it is.



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