KB5079473 Windows 11 Cumulative Update build fails with error ox800f081f


gromittoo said:
The corrupt files may be in the place where the WU files are downloaded to:
​
Windows 11 updates are primarily downloaded to the C:\Windows\SoftwareDistribution\Download folder. This is the default location for automatic updates. For feature updates or manual installations, files may temporarily appear in a hidden folder named C:\$WINDOWS.~BT​
​

The fix that worked for me was to delete the files in SoftwareDistribution, to force windows update to re-download them. These files do not get checked by SFC or DISM. Because of permissions set on the SoftwareDistribution folder, it is easiest to do it from "Safe Mode".
Click to expand...
Alas, I tried that but it doesn't work.
 

My Computer

System One

  • OS
    Windows 11 Pro
    Computer type
    PC/Desktop
    Manufacturer/Model
    Scan build
    CPU
    Ryzen 7 9850X3D
    Motherboard
    Asus ROG STRIX x870-f gaming
    Memory
    64GB Corsair 6000Mhz
    Graphics Card(s)
    PNY RTX 5080
    Sound Card
    Sound Blaster Z SE
    Monitor(s) Displays
    Benq GW2765, Iiyama XB3288LHSU, MSI MPG32IUX OLED
    Screen Resolution
    3840 x 2160 x2, 2560 x 1440 x1
    Hard Drives
    2 x 1TB Samsung 9100 pro
    PSU
    Corsair RMe RM1000e
    Case
    NZXT H9 Flow
    Cooling
    Noctua NH-U12A + 2x3 case fan banks
    Keyboard
    Steel Series Apex 3
    Mouse
    Logitec Lift
    Internet Speed
    500mbits
    Browser
    DDG, Firefox
Rob Ert said:
Hello

This is my first post here and, sadly, it's of the "me too" variety.

I have tried all the usual attempts to get this running but my install of KB5079473 gets to around 73% then just stops giving an error of 0x800f0991

i posted on some MS forums and was told this error code usually indicates corrupt file(s). DISM and CHKDSK do not corroborate this, saying there is nothing wrong.

The only thing I haven't tried is an in-place repair. My current PC is only three weeks old, fresh from the system builders.

Looking over this thread and various internet searches, it seems I'm not the only one having issues with this KB.

Hey ho.
Click to expand...


Please open a new thread.







In the new thread please run these scripts > post share links




1) Run the V2 log collector > post a share link

BSOD - Posting Instructions




2) Run tuneup_plus_log.bat > post a share link

https://www.tenforums.com/attachmen...-files-use-bsod-debugging-tuneup_plus_log.bat

Batch files for use in BSOD debugging - Windows 10 Help Forums

Batch files for use in BSOD debugging - Windows 10 Help Forums




3) Run upgrade_failure_info.bat > post a share link

https://www.tenforums.com/attachmen...s-use-bsod-debugging-upgrade_failure_info.bat

Batch files for use in BSOD debugging - Windows 10 Help Forums

Batch files for use in BSOD debugging - Windows 10 Help Forums
 

My Computer

System One

  • OS
    Windows 10
    Computer type
    Laptop
    Manufacturer/Model
    HP
    CPU
    Intel(R) Core(TM) i7-4800MQ CPU @ 2.70GHz
    Motherboard
    Product : 190A Version : KBC Version 94.56
    Memory
    16 GB Total: Manufacturer : Samsung MemoryType : DDR3 FormFactor : SODIMM Capacity : 8GB Speed : 1600
    Graphics Card(s)
    NVIDIA Quadro K3100M; Intel(R) HD Graphics 4600
    Sound Card
    IDT High Definition Audio CODEC; PNP Device ID HDAUDIO\FUNC_01&VEN_111D&DEV_76E0
    Hard Drives
    Model Hitachi HTS727575A9E364
    Antivirus
    Microsoft Defender
    Other Info
    Mobile Workstation

My Computer

System One

  • OS
    Windows 10
    Computer type
    Laptop
    Manufacturer/Model
    HP
    CPU
    Intel(R) Core(TM) i7-4800MQ CPU @ 2.70GHz
    Motherboard
    Product : 190A Version : KBC Version 94.56
    Memory
    16 GB Total: Manufacturer : Samsung MemoryType : DDR3 FormFactor : SODIMM Capacity : 8GB Speed : 1600
    Graphics Card(s)
    NVIDIA Quadro K3100M; Intel(R) HD Graphics 4600
    Sound Card
    IDT High Definition Audio CODEC; PNP Device ID HDAUDIO\FUNC_01&VEN_111D&DEV_76E0
    Hard Drives
    Model Hitachi HTS727575A9E364
    Antivirus
    Microsoft Defender
    Other Info
    Mobile Workstation
zbook said:
Please open a new thread.







In the new thread please run these scripts > post share links




1) Run the V2 log collector > post a share link

BSOD - Posting Instructions




2) Run tuneup_plus_log.bat > post a share link

https://www.tenforums.com/attachmen...-files-use-bsod-debugging-tuneup_plus_log.bat

Batch files for use in BSOD debugging - Windows 10 Help Forums

Batch files for use in BSOD debugging - Windows 10 Help Forums




3) Run upgrade_failure_info.bat > post a share link

https://www.tenforums.com/attachmen...s-use-bsod-debugging-upgrade_failure_info.bat

Batch files for use in BSOD debugging - Windows 10 Help Forums

Batch files for use in BSOD debugging - Windows 10 Help Forums
Click to expand...
I'm new here so I'm sorry if I'm missing something...

I'm not experiencing any BSOD's - it's just the KB fails to install.
 

My Computer

System One

  • OS
    Windows 11 Pro
    Computer type
    PC/Desktop
    Manufacturer/Model
    Scan build
    CPU
    Ryzen 7 9850X3D
    Motherboard
    Asus ROG STRIX x870-f gaming
    Memory
    64GB Corsair 6000Mhz
    Graphics Card(s)
    PNY RTX 5080
    Sound Card
    Sound Blaster Z SE
    Monitor(s) Displays
    Benq GW2765, Iiyama XB3288LHSU, MSI MPG32IUX OLED
    Screen Resolution
    3840 x 2160 x2, 2560 x 1440 x1
    Hard Drives
    2 x 1TB Samsung 9100 pro
    PSU
    Corsair RMe RM1000e
    Case
    NZXT H9 Flow
    Cooling
    Noctua NH-U12A + 2x3 case fan banks
    Keyboard
    Steel Series Apex 3
    Mouse
    Logitec Lift
    Internet Speed
    500mbits
    Browser
    DDG, Firefox
Rob Ert said:
I'm new here so I'm sorry if I'm missing something...

I'm not experiencing any BSOD's - it's just the KB fails to install.
Click to expand...

Diagnostic info is helpful in any case 👍 It can help Zbook find a cause.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 25H2 Build 26200.8524
    Computer type
    PC/Desktop
    Manufacturer/Model
    Sin-built 2013
    CPU
    Intel(R) Core(TM) i7-4770K CPU @ 3.50GHz
    Motherboard
    ASUS ROG Maximus VI Formula
    Memory
    32.0 GB of I forget and the box is in storage.
    Graphics Card(s)
    Gigabyte nVidia GeForce GTX 1660 Super OC 6GB
    Sound Card
    Onboard thingy
    Monitor(s) Displays
    5 x LG 25MS500-B - 1 x 24MK430H-B - 1 x Wacom Pro 22" Touch Screen Tablet
    Screen Resolution
    All over the place
    Hard Drives
    Too many to list.
    OS on Samsung 1TB 870 QVO SATA
    PSU
    Silverstone 1500
    Case
    NZXT Phantom 820 Full-Tower Case
    Cooling
    Noctua NH-D15 Elite Class Dual Tower CPU Cooler / 6 x EziDIY 120mm / 2 x Corsair 140mm somethings / 1 x 140mm Thermaltake something / 2 x 200mm Corsair.
    Keyboard
    Corsair K95 / Logitech diNovo Edge Wireless
    Mouse
    Logitech: G402 / G502 / Mx Masters / Mx Air Cordless
    Internet Speed
    2000/500Mbps
    Browser
    All sorts
    Antivirus
    Kaspersky Premium
    Other Info
    ㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
    TP-Link BE9300 WiFi 7 Bluetooth 5.4 (Archer TBE550E)
    TP-Link TX201 V1 2.5GB Lan

    Grandstream HT812 - VoIP
    ASUS DSL-AX82U - Mesh
    ASUS RT-AC68U - Mesh
    ASUS RT-BE88U Router

    Brother MFC-L2880DW Printer

    I’m on a horse.
  • Operating System
    Windows 11 Pro 25H2 Build 26200.8524
    Computer type
    Laptop
    Manufacturer/Model
    LENOVO Yoga 7 14IRL8 - 7i EVO OLED 14" Touchscreen i5 12 Core 16GB/512GB
    CPU
    Intel Core 12th Gen i5-1240P Processor (1.7 - 4.4GHz)
    Memory
    16GB LPDDR5 RAM
    Graphics card(s)
    Intel Iris Xe Graphics Processor
    Sound Card
    Optimized with Dolby Atmos®
    Screen Resolution
    QHD 2880 x 1800 OLED
    Hard Drives
    M.2 512GB
    Antivirus
    Defender / Malwarebytes
    Other Info
    …still on a horse.
Rob Ert said:
Alas, I tried that but it doesn't work.
Click to expand...

Try running these in admin command prompt then try the update again.

Code: 
Dism /Online /Cleanup-Image /RestoreHealth

After that completes do this one.

Code: 
sfc /scannow

The restore health may seem like it is hanging around 62% but just be patient as it is downloading files from Windows Update.
 

My Computer

System One

  • OS
    Windows 11 Pro
KevTech said:
Try running these in admin command prompt then try the update again.

Code: 
Dism /Online /Cleanup-Image /RestoreHealth

After that completes do this one.

Code: 
sfc /scannow

The restore health may seem like it is hanging around 62% but just be patient as it is downloading files from Windows Update.
Click to expand...
I've done those I'm afraid.

I've also stopped wuauserv, cryptsvc, bits and msiserver, renamed the relevant directory then restarted those services..
 

My Computer

System One

  • OS
    Windows 11 Pro
    Computer type
    PC/Desktop
    Manufacturer/Model
    Scan build
    CPU
    Ryzen 7 9850X3D
    Motherboard
    Asus ROG STRIX x870-f gaming
    Memory
    64GB Corsair 6000Mhz
    Graphics Card(s)
    PNY RTX 5080
    Sound Card
    Sound Blaster Z SE
    Monitor(s) Displays
    Benq GW2765, Iiyama XB3288LHSU, MSI MPG32IUX OLED
    Screen Resolution
    3840 x 2160 x2, 2560 x 1440 x1
    Hard Drives
    2 x 1TB Samsung 9100 pro
    PSU
    Corsair RMe RM1000e
    Case
    NZXT H9 Flow
    Cooling
    Noctua NH-U12A + 2x3 case fan banks
    Keyboard
    Steel Series Apex 3
    Mouse
    Logitec Lift
    Internet Speed
    500mbits
    Browser
    DDG, Firefox
Rob Ert said:
Hello

This is my first post here and, sadly, it's of the "me too" variety.

I have tried all the usual attempts to get this running but my install of KB5079473 gets to around 73% then just stops giving an error of 0x800f0991

i posted on some MS forums and was told this error code usually indicates corrupt file(s). DISM and CHKDSK do not corroborate this, saying there is nothing wrong.

The only thing I haven't tried is an in-place repair. My current PC is only three weeks old, fresh from the system builders.

Looking over this thread and various internet searches, it seems I'm not the only one having issues with this KB.

Hey ho.
Click to expand...


Please open a new thread in this forum room:

www.elevenforum.com

Installation, Updates and Activation

Help with Installing/Upgrading, Activating, and Updating Windows 11
www.elevenforum.com www.elevenforum.com




This will be your thread.

(no thread hijacking)





Please post share links for these scripts:

1) Run the V2 log collector > post a share link

BSOD - Posting Instructions




2) Run tuneup_plus_log.bat > post a share link

https://www.tenforums.com/attachmen...-files-use-bsod-debugging-tuneup_plus_log.bat

Batch files for use in BSOD debugging - Windows 10 Help Forums

Batch files for use in BSOD debugging - Windows 10 Help Forums




3) Run upgrade_failure_info.bat > post a share link

https://www.tenforums.com/attachmen...s-use-bsod-debugging-upgrade_failure_info.bat

Batch files for use in BSOD debugging - Windows 10 Help Forums

Batch files for use in BSOD debugging - Windows 10 Help Forums





The scripts run in the background and complete with posting instructions.

The script names cannot be changed for their various uses.

(for example, the V2 log collector is used to collect files for troubleshooting numerous computer problems)
 

My Computer

System One

  • OS
    Windows 10
    Computer type
    Laptop
    Manufacturer/Model
    HP
    CPU
    Intel(R) Core(TM) i7-4800MQ CPU @ 2.70GHz
    Motherboard
    Product : 190A Version : KBC Version 94.56
    Memory
    16 GB Total: Manufacturer : Samsung MemoryType : DDR3 FormFactor : SODIMM Capacity : 8GB Speed : 1600
    Graphics Card(s)
    NVIDIA Quadro K3100M; Intel(R) HD Graphics 4600
    Sound Card
    IDT High Definition Audio CODEC; PNP Device ID HDAUDIO\FUNC_01&VEN_111D&DEV_76E0
    Hard Drives
    Model Hitachi HTS727575A9E364
    Antivirus
    Microsoft Defender
    Other Info
    Mobile Workstation
zbook said:
Please open a new thread in this forum room:

www.elevenforum.com

Installation, Updates and Activation

Help with Installing/Upgrading, Activating, and Updating Windows 11
www.elevenforum.com www.elevenforum.com




This will be your thread.

(no thread hijacking)





Please post share links for these scripts:

1) Run the V2 log collector > post a share link

BSOD - Posting Instructions




2) Run tuneup_plus_log.bat > post a share link

https://www.tenforums.com/attachmen...-files-use-bsod-debugging-tuneup_plus_log.bat

Batch files for use in BSOD debugging - Windows 10 Help Forums

Batch files for use in BSOD debugging - Windows 10 Help Forums




3) Run upgrade_failure_info.bat > post a share link

https://www.tenforums.com/attachmen...s-use-bsod-debugging-upgrade_failure_info.bat

Batch files for use in BSOD debugging - Windows 10 Help Forums

Batch files for use in BSOD debugging - Windows 10 Help Forums





The scripts run in the background and complete with posting instructions.

The script names cannot be changed for their various uses.

(for example, the V2 log collector is used to collect files for troubleshooting numerous computer problems)
Click to expand...
I tried to get that info but my PC Smart Control won't allow the .bat files to execute.
 

My Computer

System One

  • OS
    Windows 11 Pro
    Computer type
    PC/Desktop
    Manufacturer/Model
    Scan build
    CPU
    Ryzen 7 9850X3D
    Motherboard
    Asus ROG STRIX x870-f gaming
    Memory
    64GB Corsair 6000Mhz
    Graphics Card(s)
    PNY RTX 5080
    Sound Card
    Sound Blaster Z SE
    Monitor(s) Displays
    Benq GW2765, Iiyama XB3288LHSU, MSI MPG32IUX OLED
    Screen Resolution
    3840 x 2160 x2, 2560 x 1440 x1
    Hard Drives
    2 x 1TB Samsung 9100 pro
    PSU
    Corsair RMe RM1000e
    Case
    NZXT H9 Flow
    Cooling
    Noctua NH-U12A + 2x3 case fan banks
    Keyboard
    Steel Series Apex 3
    Mouse
    Logitec Lift
    Internet Speed
    500mbits
    Browser
    DDG, Firefox
Rob Ert said:
I tried to get that info but my PC Smart Control won't allow the .bat files to execute.
Click to expand...

The bat scripts when created were designed to prompt AV.

A manual override must be performed to run steps 2 and 3.

Step 1 does not by design prompt AV however some must be disabled or temporarily uninstalled to run the log collector script.
 

My Computer

System One

  • OS
    Windows 10
    Computer type
    Laptop
    Manufacturer/Model
    HP
    CPU
    Intel(R) Core(TM) i7-4800MQ CPU @ 2.70GHz
    Motherboard
    Product : 190A Version : KBC Version 94.56
    Memory
    16 GB Total: Manufacturer : Samsung MemoryType : DDR3 FormFactor : SODIMM Capacity : 8GB Speed : 1600
    Graphics Card(s)
    NVIDIA Quadro K3100M; Intel(R) HD Graphics 4600
    Sound Card
    IDT High Definition Audio CODEC; PNP Device ID HDAUDIO\FUNC_01&VEN_111D&DEV_76E0
    Hard Drives
    Model Hitachi HTS727575A9E364
    Antivirus
    Microsoft Defender
    Other Info
    Mobile Workstation
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