Windows 11 KB5077181 échec de l'installation Windows update

[Narbomartius]

La mise à jour KB5077181 ne s'installe pas (code d'erreur 0x80070005). La version d’évaluation facultative a également échoué. Windows a été réinstallé il y a moins d'un mois. D'autres téléchargements, comme Windows Defender, fonctionnent correctement.

 

[ChatGPT]

Error 0x80070005 usually means “Access denied” during the update install (permissions/security software/policy, or a corrupted Windows Update store).
Also, KB5077181 is the February 10, 2026 cumulative update for Windows 11 24H2/25H2 (OS Builds 26100.7840 / 26200.7840) . So first we should confirm it actually applies to your PC.

1) Confirm your Windows version (important)​

Press Win + R → type winver → tell me:

• Windows 11 version (24H2 / 25H2 / 23H2, etc.)
• OS Build number

If you’re on 23H2 or Windows 10, KB5077181 won’t be the correct update for your system.

2) Reset Windows Update components (most effective for this symptom)​

Open Windows Terminal / Command Prompt (Admin) and run:

net stop wuauserv
net stop bits
net stop cryptsvc
net stop msiserver

ren %windir%\SoftwareDistribution SoftwareDistribution.old
ren %windir%\System32\catroot2 catroot2.old

net start msiserver
net start cryptsvc
net start bits
net start wuauserv

Reboot, then try Windows Update again.

3) Repair system files (DISM + SFC)​

In Terminal (Admin):

DISM /Online /Cleanup-Image /RestoreHealth
sfc /scannow

Reboot and try the update again.

4) Check the two common “Access denied” blockers​

1) Third-party antivirus / security (Bitdefender, Avast, etc.)
Temporarily uninstall it (not just disable) and retry the update.
2) Windows Security → Ransomware protection (Controlled folder access)
If it’s enabled, temporarily turn it off and retry.

5) If it still fails: try a manual install (bypasses some Windows Update issues)​

Download KB5077181 from the Microsoft Update Catalog (make sure you pick the right architecture: x64 vs ARM64), then run the .msu.

If you reply with these, I can narrow it down quickly​

1) Output of winver (version + build)
2) Any mention of a “failed to install” entry in Settings → Windows Update → Update history (and any additional error codes)
3) Do you have any third-party antivirus installed?
If you want, you can also upload logs—but I didn’t receive any attachments with your post on the forum, so you’d need to attach them again (a ZIP is fine).

 

[Narbomartius]

25H2 buid 26200.7628

 

[ChatGPT]

Thanks — Windows 11 25H2 build 26200.7628 means the February security update KB5077181 (which should take you to 26200.7840) has not installed yet. (support.microsoft.com)
Because your error is 0x80070005 (Access denied), the usual causes are: Windows Update cache/permissions, security software “hardening”, or a stuck servicing component.

Step 1 — Quick repair (safe, fixes many 0x80070005 cases)​

Open Command Prompt (Admin) and run:

DISM /Online /Cleanup-Image /RestoreHealth
sfc /scannow

Reboot and try Windows Update again.

Step 2 — Reset Windows Update components​

In Command Prompt (Admin):

net stop wuauserv
net stop bits
net stop cryptsvc
net stop msiserver

ren %windir%\SoftwareDistribution SoftwareDistribution.old
ren %windir%\System32\catroot2 catroot2.old

net start msiserver
net start cryptsvc
net start bits
net start wuauserv

Reboot → try the update again.

Step 3 — Manual install in the Microsoft-supported order (important for this KB)​

Microsoft explicitly states that KB5077181’s standalone packages include MSU files that must be installed in a specific order, and gives two supported methods: (support.microsoft.com)

Method A (recommended): put MSUs in the same folder and let DISM pick prerequisites​

1. Download all MSU files for KB5077181 from the Microsoft Update Catalog.
2. Put them in C:\Packages
3. Run (Admin CMD):

DISM /Online /Add-Package /PackagePath:C:\Packages\Windows11.0-KB5077181-x64.msu
Microsoft notes DISM can discover/install prerequisite MSUs from that folder. (support.microsoft.com)

Method B (explicit order)​

Microsoft lists this order for x64: (support.microsoft.com)
1) KB5043080 MSU
2) KB5077181 MSU

Step 4 — If it still fails: likely a “blocker”​

Please tell me:
1) Do you have any third-party antivirus/security installed (Bitdefender/Avast/etc.)?
2) Is this PC on a work/school domain or using any “privacy/hardening” tools?
And (most helpful) paste the exact failure line from:
Settings → Windows Update → Update history → Failed (it sometimes shows an additional code/detail besides 0x80070005).
If you want, I can also tell you exactly which log lines to grab (CBS + WindowsUpdate) so we can see what access is being denied.

 

[Narbomartius]

oui, indiquez moi

 

[ChatGPT]

Here you go — please try the KB5077181 install once more (so the failure is “fresh”), then collect these logs immediately after it fails.

A) Create a readable Windows Update log (Desktop)​

Open PowerShell (Run as Administrator) and run: dowsUpdateLog -LogPath "$env:USERPROFILE\Desktop\WindowsUpdate.log"

## B) Extract the useful CBS lines (Desktop)
Open **Command Prompt (Run as Administrator)** and run:
```bat
findstr /c:"[SCBS.log > "%USERPROFILE%\Desktop\CBS_SR.txt"
findstr /i "0x80070005" "%windir%\Logs\CBS\CBS.log" > "%USERPROFILE%\Desktop\CBS_0x80070005.txt"
findstr /i "5077181" "%windir%\Logs\CBS\CBS.log" > "%USERPROFILE%\Desktop\CBS_KB5077181.txt"

C) Quick “is it partially installed?” check​

In Command Prompt (Admin):
dism /online /get-packages | findstr 5077181
Copy/paste the output into your reply (or screenshot).

D) Upload the files here​

Please attach (zipped is fine):

• WindowsUpdate.log
• CBS_SR.txt
• CBS_0x80070005.txt
• CBS_KB5077181.txt

If the forum blocks .log files, rename .log to .txt or ZIP them before uploading.

One question (important for 0x80070005ird‑party antivirus/security** installed (Bitdefender/Avast/etc.) or only Microsoft Defender?​

 

[Narbomartius]

En fait, il ne suffisait pas de désactiver Nod32 mon antivirus et de sortir de malwarebytes, mais il fallait les désinstaller. Après avoir reconstruit systemdistribution, tout est passé. Merci

 

[ChatGPT]

Glad you got it resolved — that outcome fits 0x80070005 (Access Denied) perfectly.
What fixed it (for anyone following along):

• Disabling ESET NOD32 and exiting Malwarebytes wasn’t enough.
• Uninstalling them removed the low-level drivers/self‑protection that can still block Windows servicing.
• Rebuilding the Windows Update cache (SoftwareDistribution) then allowed KB5077181 to install successfully.

What to do now (recommended)​

1) Reboot once more and confirm with winver that you’re on Build 26200.7840.
2) Reinstall your security tools (latest versions), then run Windows Update again to ensure there are no pending updates.
3) In the future, if an update fails with 0x80070005 again, try a clean boot or temporarily uninstall third‑party AV/anti‑malware before the update.
If you tell me whether you want to keep both NOD32 + Malwarebytes (real-time), I can suggest the safest configuration to avoid conflicts (e.g., one real-time, the other on-demand).