Windows Update Error 8007001f 0x4000d Fix

Windows Update error 8007001f 0x4000d usually appears when the update service cannot write or read temporary files, often due to corrupted update cache, permission issues, or a failing hard drive. The fix is to stop the Windows Update services, clear the SoftwareDistribution folder, and restart the services; if that fails, run the System File Checker and DISM to repair system files.

What Does Error 8007001f 0x4000d Mean?

The error code combines two parts: 8007001f is a generic Windows error that maps to ERROR_WRITE_FAULT (the system cannot write to the specified device), and 0x4000d is a Windows Update-specific sub-code indicating a problem with the update payload. In practice, this means Windows Update is trying to write update files to your disk but fails, often because the temporary update folder is corrupted or the disk has bad sectors.

This error is not tied to a single Windows version; it can occur on Windows 10 and Windows 11, and sometimes on older systems. It is more common after a forced shutdown, a disk cleanup that interrupted an update, or when third-party security software locks update files.

Before You Start: Backup and Safe Mode

Before making changes, back up any important files. The steps below modify system folders and services, and while they are generally safe, a backup ensures you can recover if something unexpected happens. If you are comfortable, boot into Safe Mode with Networking to avoid interference from third-party drivers and startup programs. To do this, hold Shift while clicking Restart in the Start menu, then navigate to Troubleshoot > Advanced options > Startup Settings > Restart, and press 5 or F5 for Safe Mode with Networking.

Fix 1: Clear the SoftwareDistribution Folder

This is the most common fix. The C:\Windows\SoftwareDistribution folder holds temporary update files. If they are corrupted, Windows Update cannot proceed.

Open Command Prompt as administrator (right-click Start, choose Terminal (Admin) or Command Prompt (Admin)).
Stop the update services by typing these commands one by one, pressing Enter after each:
- net stop wuauserv
- net stop cryptSvc
- net stop bits
- net stop msiserver
Rename the SoftwareDistribution folder to keep it as a backup: ren C:\Windows\SoftwareDistribution SoftwareDistribution.old
Restart the services with the same commands but replace stop with start.
Try Windows Update again.

If the rename fails because a file is in use, make sure you ran the stop commands and that no update is currently running. If it still fails, restart the computer and try again.

Fix 2: Run System File Checker and DISM

If the error persists, system files may be corrupted. The System File Checker (SFC) scans and repairs protected system files, and DISM (Deployment Imaging Service and Management Tool) fixes the system image that SFC relies on.

Open Command Prompt as administrator.
Run DISM /Online /Cleanup-Image /RestoreHealth. This can take 15-30 minutes. Do not close the window.
After DISM finishes, run sfc /scannow. This also takes time.
Restart your computer and try updating again.

If SFC finds files it cannot repair, run DISM again and then SFC. If the problem persists, you may need to perform a repair install using the Windows Media Creation Tool, which keeps your files and apps.

Fix 3: Check Disk for Errors

Because 8007001f is a write fault, a failing hard drive or SSD can cause it. Run Check Disk to find and fix bad sectors.

Open Command Prompt as administrator.
Type chkdsk C: /f /r and press Enter.
You will be asked to schedule the check for the next restart. Type Y and press Enter.
Restart your computer. The check will run before Windows loads, which can take an hour or more.

If Check Disk reports many bad sectors, back up your data immediately and consider replacing the drive. If the drive is healthy, move on to the next fix.

Fix 4: Reset Windows Update Components Manually

If the above steps do not work, you can manually reset the Windows Update components. This is a more thorough version of Fix 1, and it also resets the network stack.

Open Command Prompt as administrator.
Run the same net stop commands as in Fix 1.
Rename the Catroot2 folder as well: ren C:\Windows\System32\catroot2 Catroot2.old
Reset the network stack with these commands:
- netsh winsock reset
- netsh int ip reset
Restart the services with the net start commands.
Restart your computer.

This clears both the update cache and the network settings, which can resolve errors caused by a misconfigured proxy or VPN.

When to Use the Windows Update Troubleshooter

Before trying manual fixes, you can run the built-in Windows Update Troubleshooter. It automates many of the steps above and may fix the issue without command-line work. To access it:

Open Settings > System > Troubleshoot > Other troubleshooters.
Select Windows Update and click Run.

This tool checks for common issues like corrupted update files, service misconfigurations, and network problems. It is a good first step, but if it does not resolve the error, proceed with the manual fixes.

Frequently Asked Questions

Will I lose my files if I clear the SoftwareDistribution folder?

No. The SoftwareDistribution folder contains only temporary update files. Renaming or deleting it does not affect your personal files, installed programs, or the updates that are already installed. Windows will recreate the folder the next time you run Windows Update.

Why does this error happen after a forced shutdown?

A forced shutdown (like holding the power button) can interrupt an update while it is writing files. This leaves partial files in the SoftwareDistribution folder, which Windows Update cannot use, leading to write errors like 8007001f.

Can I fix this without administrator access?

No. All the fixes require administrative privileges because they modify system folders and services. If you are on a work or school computer, contact your IT administrator.

How long does the DISM command take?

DISM can take anywhere from 15 minutes to over an hour, depending on your system speed and the extent of corruption. Do not close the Command Prompt window during the process, or you may cause further issues.

Should I use the Media Creation Tool for a repair install?

If all other fixes fail, a repair install (also called in-place upgrade) can fix deep system corruption while keeping your files and apps. Download the Media Creation Tool from Microsoft’s official site, run it, and choose Upgrade this PC now. This is a last resort, as it takes time and requires a stable internet connection.

General steps for current mainstream versions; menus can differ by device and version. See the disclaimer or report an error.

More in this bed

The whole Tech How-To bed →