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Home » Official Guide to Fix 0x8007371B Windows 10 Update Error

Official Guide to Fix 0x8007371B Windows 10 Update Error

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Each time when you try to do following thing in windows 10 you may get end with update error code 0x8007371B.

When you try to Security Update for Adobe Flash Player for Windows 10 32bit or 64bit version.
When you try to Cumulative Update for Windows 10 version 1511 for the x64-based system.
When you Update Windows 10
When you upgrade from Windows Vista/Windows Server/7/8/8.1 to Windows 10.

These are the common scenarios when you may get this error. Sometimes this error occurs with an error message like that:



Method 1: Fix using Advanced System Repair Tool

The most of the common reason behind windows update failed is corrupted or damaged system files like dll files, exe files, sys files etc. There are thousands of tiny system files are there that work specific task. If one of the files gets replaced, deleted or damaged then you may get windows update error 0x8007371B.

Windows is made with huge number of dll files, exe files, sys files, various types of services, databases, etc so, it is not possible to keep monitoring all the files always. A brilliant PC Optimizer tool repairs damages, fix errors, update windows and drivers, and eliminate various types of errors silently.

Outbyte PC Repair Tool does all the above task easily and provides you an errorfree and smooth Windows environment to work so that you can focus on your business only.

3 Steps to Fix this Error
Step 1. Download Outbyte PC Repair Tool [File Size: 16.4 MB]
Step 2. SCAN your Windows PC
Step 3. Click Fix button to Repair Error

Download and Install Advanced System Repair Tool and scan your PC. It has a large database with 25 millions of files. It will find all the damaged or deleted system files and reinstall them with a fresh one. After, optimizing with Advanced System Repair Tool, try to install windows update again.

Method 2: Repair Windows Installation

You must repair your windows installation again using windows installation disk. There may be definitely some important windows files are missing or damaged that are responsible for Windows Update. Because the important files are missing, windows 10 updated failed and you are getting windows 10 update error 0x8007371B.
Windows Installation

Step 1. Insert Windows Installation disk into CD/DVD Drive and Reboot.

Step 2. You will get message, Press any key boot from CD/DVD. Press Enter and wait for loading all files.


Windows Installation

Step 3. Select Repair your Computer instead of Install Now button.
Windows Repair

Step 4. A System Recovery Options will be open in windows. Choose Command Prompt at the bottom of the menu.
System Recovery Option

Step 5. In the next windows there will be 2 radio buttons. Make sure first one is selected and then note the Drive Letter, which appears in text box.

Step 6. Command Prompt Windows will open. Now, you are ready to scan your system damage using Windows Installation Disk Command Prompt.

sfc /scannow /offbootdir=[DRIVELETTER]:\ /offwindir=[DRIVELETTER]:\windows

Make sure to put Drive Letter which you noted in Step 5. Don’t use brackets. For example:

sfc /scannow /offbootdir=D:\ /offwindir=D:\windows

Step 7. Window will now start a process to find and repair any errors in Windows Installation.

Step 8. After finishing the process, gently restart your computer in normal state and try to windows update again. I hope, you won’t get windows update error code 0x8007371B.

Method 3: Use Microsoft Patch to Fix 0x8007371B

The good news is that Microsoft noticed this error and released a patch to fix this error. This tool is called System Update Readiness Tool KB947821 that can be downloaded from Microsoft Sites. You can also search on internet for KB947821 tool.

Details of this file:

Version: 947821
File Name: Windows6.1-KB947821-v34-x86.msu
Date Published: 27-10-2014
File Size: 228.0 MB

After downloading and installing this tool, you must restart your PC. After restarting your PC, try to do Update Windows 10.


In this article, I have tried to show you all the methods that can fix windows 10 update error 0x8007371B or ERROR_SXS_TRANSACTION_CLOSURE_INCOMPLETED(0x8007371b)

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