Windows 10: Can't install 1903 -- 0xc1420121

I've been trying to get this to install for 3 days and it keeps failing around ~80%.

Unfortunately the error code 0xc1420121 doesn't seem to give a clear indication as to what the problem is.

So far I've tried:

Rebooting after every attempt

Running sfc /scannow

Running DISM.exe /Online /Cleanup-image /Restorehealth

Installing the update using the Media Creation Tool

Running the update troubleshooter and allowing it to do whatever it recommended

Still, no matter what I do, I get that same vague error code. What should I try next? I really don't want to do a clean install just to fix a simple update.

submitted by /u/nosmokingbandit
[link] [comments]

:)

 

Error 0xc1420121 when trying to update to 1903

As the the title said, I am having problems with the 1903 update. support has said wait till the update appears in Windows Update. Still has the 0xc1420121 error.

 

Windows 10 Insider Preview Update then got Installing Error 0xc1420121

I joined windows 10 Insider preview. I completely downloaded the update but Im having a problem after installing at 76%. This is the error occurs: Windows 10 Insider Preview 10.0.18362.30 (19h1_release) amd64 2019-04 - Error 0xc1420121

-Current Installed-

Edition: Windows 10 Pro

Version: 1903

Installed On: 3/11/2019

OS Build: 18353.1

Insider Settings:

Slow

Please help me to fix the error. Thanks.

 

Windows 10 Update to ver 1903 fails

Windows 10 update to version 1903 fails with error code 0xc1420121 and 0x8024000b.

PC is a Dell XPS13.

Can anyone help, I have tried to install from version 1809 about 10 times.