Windows 10: What is Windows 10 Update Error Code 0xc1420121?

I just want this one simple question answered because I can't find it in any Internet searches.


What is Windows 10 Update Error Code 0xc1420121?


Maybe if I knew I could finally upgrade my machine from Insider build 18908.


Please don't respond with "try these ten thousand items". They don't work.


Just tell me what Error Code 0xc1420121 means! Something must be causing it and if I knew I might be able to rectify it.


If looking at my log file helps I can supply it.


But just answer the question, please.


Thanks.

:)

 

Windows 7 to windows 10 Upgrade Fails 30% error 0xC1420121

I have been going nuts trying to figure this out I have tried almost everything currently I have tried upgrading from windows 7 to windows 10 to using the ISO from a USB stick which gets me the furthers I get to 30% and then there is a problem. Here is my
setuperr.log. There is not much on this error and I don't want to do a fresh install of windows 10 makes no sense if I should be able to upgrade. Can anyone help me please I have tried everything I could think of no Anti virus a clean boot no video drivers...
I get this error all the time.

2016-06-30 02:15:17, Error MOUPG CSystemHelper::CheckConnectedStandby(642): Result = 0x80070057

2016-06-30 02:19:56, Error CONX Windows::Compat::Appraiser::Utilities::SendRequest (1070): Failed to connect to the internet: [12007][gle=0x80072ee7]

2016-06-30 02:19:56, Error CONX Windows::Compat::Appraiser::Utilities::ResolveForwardLink (1134): Failed to send request using default proxy[gle=0x80072ee7]

2016-06-30 02:19:56, Error CONX Windows::Compat::Appraiser::Utilities::SendRequest (976): Error opening the internet: [87].[gle=0x80070057]

2016-06-30 02:19:56, Error CONX Windows::Compat::Appraiser::Utilities::ResolveForwardLink (1140): Failed to send request using auto proxy[gle=0x80070057]

2016-06-30 02:19:56, Error CONX Windows::Compat::Appraiser::CosDeviceDataSource::Initialize (93): Could not resolve COS FwLink: [0x80070057].[gle=0x80070057]

2016-06-30 02:19:56, Error CONX Windows::Compat::Appraiser::SetupAppraiser::InitializeDataSourceComponents (1521): Failed to initialize, swallowing error: [0x80070057].[gle=0x80070057]

2016-06-30 02:19:56, Error CONX WlanOpenHandle failed with error 00000426

2016-06-30 02:23:44, Error SP CMountWIM:oExecute: Failed to mount WIM file C:\$WINDOWS.~BT\Sources\SafeOS\winre.wim. Error 0xC1420121[gle=0xc1420121]

2016-06-30 02:23:45, Error SP Operation failed: Mount WIM file C:\$WINDOWS.~BT\Sources\SafeOS\winre.wim, index 1 to C:\$WINDOWS.~BT\Sources\SafeOS\SafeOS.Mount. Error: 0xC1420121[gle=0x000000b7]

2016-06-30 02:23:45, Error MOUPG MoSetupPlatform: ExecuteCurrentOperations reported failure!

2016-06-30 02:23:45, Error MOUPG MoSetupPlatform: Using action error code: [0xC1420121]

2016-06-30 02:23:45, Error MOUPG CDlpActionImageDeploy::ExecuteRoutine(329): Result = 0xC1420121

2016-06-30 02:23:45, Error MOUPG CDlpActionImpl<class CDlpErrorImpl<class CDlpObjectInternalImpl<class CUnknownImpl<class IMoSetupDlpAction> > > >::Execute(441): Result = 0xC1420121

2016-06-30 02:23:45, Error MOUPG CDlpTask::ExecuteAction(3243): Result = 0xC1420121

2016-06-30 02:23:45, Error MOUPG CDlpTask::ExecuteActions(3397): Result = 0xC1420121

2016-06-30 02:23:45, Error MOUPG CDlpTask::Execute(1631): Result = 0xC1420121

2016-06-30 02:23:45, Error MOUPG CSetupManager::ExecuteTask(2024): Result = 0xC1420121[gle=0x0000013d]

2016-06-30 02:23:45, Error MOUPG CSetupManager::ExecuteTask(1987): Result = 0xC1420121[gle=0x0000013d]

2016-06-30 02:23:45, Error MOUPG CSetupManager::ExecuteInstallMode(804): Result = 0xC1420121[gle=0x0000013d]

2016-06-30 02:23:45, Error MOUPG CSetupManager::ExecuteDownlevelMode(389): Result = 0xC1420121[gle=0x0000013d]

2016-06-30 02:23:45, Error SP CDeploymentBase::CleanupMounts: Unable to unmount the directory C:\$WINDOWS.~BT\Sources\SafeOS\SafeOS.Mount. Error: 0xC142011C[gle=0xc142011c]

2016-06-30 02:23:47, Error MOUPG CSetupManager::Execute(232): Result = 0xC1420121

2016-06-30 02:23:47, Error MOUPG CSetupHost::Execute(371): Result = 0xC1420121

 

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 will not activate Error code 0x803F7001


Possibly there can be the problem with Microsoft activation Server, so your Windows 10 is not activated. In this scenario, you need to wait and verify if it is the issue from Microsoft’s side. But if you are getting error code 0x803f7001, you can also try these steps:

1. Open Settings app. Then go to Update and security > Activation screen > Change product.
2. Type your Windows edition product key and click Next.
3. You’ll get We couldn’t activate Windows error message.
4. Retry steps 1-3 then type your 25-characters unique product key.
5. Wait for the process to complete, Windows 10 is activated.

Hope something helps this problem