Windows Update error 0x80240fff occurs during the update download-install procedure. It is possible to repair this issue in the shortest possible time.
Why Do You Get Update Error 0x80240fff?
- Some vital DLL files could be missing or corrupted.
- DLL file entries in the Registry could be corrupted.
- Your system could be infected by a virus.
- Your system drivers could be out-of-date or incompatible driver versions are installed.
Download the Diagnostic
There are certain situations when missing entries in your registry and registry corruption causes this problem. Try running a registry scan to identify if there are any such issues.
- Click the button below to download and install the Diagnostic
- Perform a Registry scan and fix any problems detected.
- Restart your computer.

Estimated Download Time: 10 Seconds
Troubleshoot Windows Update
If you’re having problems with updating Windows, try running the Windows Update Troubleshooter. This in-house functionality in Windows scans and fixes the most common issues with the Update utility.
- Press Windows Key + X.
- Select Control Panel.
- In the Search box, type Troubleshooter.
- Click Troubleshooting.
- Under System and Security, click Fix problems with Windows Updates.
Restart Background Intelligent Transfer Service (BITS)
BITS is a service that facilitates asynchronous and throttled transfer of files. It must be running smoothly for the Windows Update to function properly.
- Press Windows Key + R key.
- Type services.msc in the text box.
- Click OK or hit ENTER.
- Locate the Background Intelligent Transfer Service (BITS) from the list.
- Right-click on it, select Properties.
- On the General tab, set the Startup type to Automatic (Delayed Start).
- Click Apply.
- If the service is not running, click on Start.
Temporarily Defer Upgrade
The Defer Upgrade feature temporarily delays downloading of low priority patches and updates for several months. However, it does not impact downloading of important security updates.
- Click Start | Settings.
- Click on Update & Security.
- Click on the Windows Update tab.
- Click on Advanced Options.
- Scroll down the page, and check the option Defer upgrades.
Turn Off Firewall
Windows Firewall protects your computer from unauthorized access. However, it may sometime prevent communication to trusted incoming ports and as a result lead to error 0x80240fff.
- Press Windows Key + X.
- Select Control Panel.
- Click System and Security | Windows Firewall.
- Turn off the Firewall protection.
Delete the Updates that Stuck
Some updates might get stuck during the update download-installation process. Windows Update may, therefore, fail subsequently.
- Press Windows Key + X.
- Type Services.msc and hit ENTER.
- Right-click Windows Update, select Stop.
- Delete the following file:
- C:\Windows\WindowsUpdate.log
- Open the following folder:
- C:\Windows\SoftwareDistribution\DataStore
- Delete all the folder contents.
- Open the following folder:
- C:\Windows\SoftwareDistribution\Download
- Delete all the folder contents.
- Restart the stopped service.
Reset your Internet Settings
Your Internet browsing settings might have been changed. Rollback your Internet settings to system defaults.
- Type inetcpl.cpl in the Search Box on your Taskbar.
- Open it from the Search Results.
- Click the Advanced tab.
- Click Reset.
- Check-up the box Delete personal settings.
- Click Reset.
- Close the open dialogs, if any.
Delete $WINDOWS.~BT Folder
Some people fixed the issue by deleting the $WINDOWS.~BT folder.
- Double click This PC icon on your Desktop.
- Click the View tab.
- Check-up Hidden items box.
- Open the C:\ drive.
- Delete the following folder:
- $WINDOWS.~BT
Caution: Do NOT delete the “Windows” folder or any of it’s contents. It contains important system files and operating system components. Doing so, will make your operating system unstable, unbootable and result in severe data loss.