Symptoms
When you install a Feature update, the error 0x800703ee may occur. The extended error code may be 0x4000D or 0x4001E.Read more
windows setup
Error 0xc1420121 when installing a Feature Update
When you attempt to install a feature update, the error 0xc1420121 may appear.
The setupact.log may show the following entries:
Read more
Windows Setup: Language Selection Screen Appears During In-Place Upgrade
When you run an in-place upgrade by running Setup.exe using the Windows 10 or 11 Media Creation Tool or ISO from Windows, the language selection screen pops up. This is unusual because the screen is supposed to appear only when booting from the USB setup disk.Read more
How to Upgrade to Windows 10 22H2 from 2004, 20H2, 21H1, 21H2
If your system runs Windows 10 2004, 20H2, 21H1, or version 21H2, you can upgrade to version 22H2 quickly without reinstallation. You can upgrade to 22H2 using the Enablement Package. You don’t have to install the Feature update/Windows Setup, and no ISO or Media Creation Tool is needed.Read more
How to Downgrade Windows 10 or 11 Pro to Home Edition
If you’re wondering how to downgrade Windows 10 or 11 Professional to Windows 10/11 Home Edition without a clean installation, this article is for you. The trick is to change the Edition ID in the registry and then do a repair installation using the ISO or Media Creation Tool.Read more
Feature Update Error 0x80242016 in Windows 10/11
When you use Windows Update to install a Feature update for Windows 10 or 11, the error code 0x80242016 may appear.
The error code 0x80242016 (“WU_E_UH_POSTREBOOTUNEXPECTEDSTATE”) means “The state of the update after its post-reboot operation has completed is unexpected.”Read more
Installation Assistant or Upgrade Assistant stuck at 99%
If the progress of Windows 11 Installation Assistant or Windows 10 Upgrade Assistant is stuck at 99% for more than four hours, here’s something you can try.Read more
0x80070003 – 0x20008 – Windows 10/11 Feature Update Error
When you attempt to install a Feature Update, the error code 0x80070003 – 0x20008 may appear.
The Setupact.log file may show the following contents:Read more
Windows 11 Installation Assistant Error 0xc00000f0
When you try to upgrade to Windows 11 using Windows 11 Installation Assistant, the error code error code 0xc00000f0 may appear at 79%. Or the setup gets stuck at Step 3 of 3: 99% during installation for more than 6 hours.Read more
SetupPlatform.exe Error 0xc0000005 During Windows Setup
When you install a Windows 10/11 Feature Update, the setup process may go until 87% and close automatically with an exception error 0xc0000005 that is recorded in the setup logs. A crash dump file may also be generated.
Setupact.log (in the Panther directory) contains these entries:Read more