Windows 10 Feature Update 20H2 failing to install.

C

ChrisFuller126

I am currently running Windows 10 version 1909 and am repeatedly asked to update with Feature Update 20H2. I have tried to update and install dozens of times without success.

I have read everything I can find offering solutions and have tried these fixes also (except a clean install of Windows which I want to avoid) without any success.

The update literally takes hours and always fails at the last, when final update is at around 90%. My system is then reverted back to it's previous state.

I am now seeing error code 0xc1900101. I have tried all the fixes for this but still cannot update and after each failed attempt, my system settings again repeat the cycle, advising that an update is pending.

I have now found a Log File that lists the errors. This was in C:\$WINDOWS.~BT\Sources\Panther and it shows the following:-




2020-12-26 01:42:21, Error CONX aeinv: ERROR,GetAppInventory,102,Inventory already running: [0x800700aa]



2020-12-26 01:54:12, Error CONX aeinv: ERROR,GetAppInventory,102,Inventory already running: [0x800700aa]



2020-12-26 01:55:11, Error CONX aeinv: ERROR,GetAppInventory,102,Inventory already running: [0x800700aa]



2020-12-26 01:56:38, Error ITaskFolder::DeleteTask failed. hr = 0x80070002

2020-12-26 01:58:40, Error SP pSPRemoveUpgradeRegTree: failed to delete reg tree HKLM\SYSTEM\Setup\Upgrade[gle=0x00000005]

2020-12-26 02:00:06, Error MIG Ignoring replacement manifest with no settingsVersionRange or versionRange attribute in migration element: Microsoft-Windows-Container-Manager

2020-12-26 02:00:12, Error [0x080831] MIG CSIAgent: Invalid xml format: FormatException: "script" attribute is mandatory. class Mig::CMXEMerge *__cdecl Mig::CMXEMigrationXml::LoadMerge(class UnBCL::XmlNode *,int,class Mig::CMXEMigrationXml *,class Mig::CMXEXmlComponent *)

2020-12-26 02:00:13, Error [0x080831] MIG CSIAgent: Invalid xml format: FormatException: "script" attribute is mandatory. class Mig::CMXEMerge *__cdecl Mig::CMXEMigrationXml::LoadMerge(class UnBCL::XmlNode *,int,class Mig::CMXEMigrationXml *,class Mig::CMXEXmlComponent *)

2020-12-26 02:00:13, Error [0x080366] MIG String or RParan expected. Script MigXmlHelper.RelativeMove('HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Holographic\DisplayThrottling [Enabled]',

'HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Holographic\DisplayThrottling [ThrottleFramerate]')

2020-12-26 02:00:13, Error [0x080831] MIG CSIAgent: Invalid xml format: FormatException: Callback entry point MigXmlHelper.RelativeMove('HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Holographic\DisplayThrottling [Enabled]',

'HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Holographic\DisplayThrottling [ThrottleFramerate]') not found. __cdecl Mig::CMXEScriptCaller::CMXEScriptCaller(class UnBCL::String *,class Mig::CMXEMigrationXml *,class Mig::CMXEXmlComponent *)

2020-12-26 02:00:33, Error [0x0808fe] MIG Plugin {050ed09e-a530-41e6-8ac9-a9a96e74a2c1}: [shmig] Gather ScreenSaverSettings: Failed to open the Control Panel\Desktop key due to error 2

2020-12-26 02:01:43, Error MIG Ignoring replacement manifest with no settingsVersionRange or versionRange attribute in migration element: Microsoft-Windows-Container-Manager

2020-12-26 02:01:49, Error [0x080366] MIG String or RParan expected. Script MigXmlHelper.RelativeMove('HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Holographic\DisplayThrottling [Enabled]',

'HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Holographic\DisplayThrottling [ThrottleExperience]')

2020-12-26 02:01:49, Error [0x080831] MIG CSIAgent: Invalid xml format: FormatException: Callback entry point MigXmlHelper.RelativeMove('HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Holographic\DisplayThrottling [Enabled]',

'HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Holographic\DisplayThrottling [ThrottleExperience]') not found. __cdecl Mig::CMXEScriptCaller::CMXEScriptCaller(class UnBCL::String *,class Mig::CMXEMigrationXml *,class Mig::CMXEXmlComponent *)

2020-12-26 02:01:51, Error [0x080831] MIG CSIAgent: Invalid xml format: FormatException: Component with display name: Plugin/{C939EC0F-2F56-4CE8-AF56-2336596A5FA7} already loaded __cdecl Mig::CMXEMigrationXml::CMXEMigrationXml(class Mig::CPlatform *,class UnBCL::String *,class UnBCL::XmlDocument *,class UnBCL::String *,class UnBCL::String *)

2020-12-26 02:09:19, Error SP CSetupPlatform::ResurrectAutomation: Failed to resurrect automation: 0x80070002[gle=0x00000002]



Can anyone please tell me what any of this means. I would be so grateful for any advice on this. T.I.A

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