Troubleshoot problems updating Windows 10

In Windows 10, you decide when and how to get the latest updates to keep your device running smoothly and securely. This article will help you answer questions and troubleshoot common problems with your Windows 10 update.

If you’re looking for info on how to activate Windows 10 or to verify that your installation of Windows 10 is activated, see Activate Windows 10.

Have issues installing Windows updates? Start here.

Your device may not be able to update to the latest version of Windows 10 for a few reasons. The following tips can help you pinpoint the issue affecting your device.

Before you begin, make sure your device is plugged into a power source and connected to the internet. Then, try the steps listed below to get your PC to update.

Some updates require administrator access. If your account doesn’t have administrator access, see Create a local user or administrator account in Windows 10. Or if someone else at home or in your office has an administrator account on your device, try asking them to install the updates.

Before trying any of the solutions below, make sure you back up your personal files. You can use File History to back up your files to another drive, or insert a USB drive and use File Explorer to drag and copy important files to the USB drive. If you’re signing into Windows with a Microsoft account, your system settings will be automatically restored after updating, once you’re connected to the internet.

You can also back up your files with OneDrive. For more info, go to Back up your Documents, Pictures, and Desktop folders with OneDrive.

Make sure that your device has enough space. Your device requires at least 16 GB of free space to upgrade a 32-bit OS, or 20 GB for a 64-bit OS. If your device has a small hard drive, you may need to insert a USB drive to update it.

If your PC is running low on storage, try the techniques at Free up drive space in Windows 10.

Many updates require you to restart your device. Save your work and close all open applications. Then, select Start > Power , and select either Update and restart or Update and shut down.

Even if you have downloaded some updates, there may be more available. After trying the preceding steps, run Windows Update again by selecting Start > Settings > Update & Security > Windows Update > Check for updates. Download and install any new updates.

Remove any external storage devices and drives, docks, and other hardware plugged into your device that aren’t needed for basic functionality. Then try to run updates again and see if this resolved your issue. If it didn’t, continue to the next tip.

If you’ve added hardware to your device, check for third-party driver updates and installation instructions on the hardware manufacturer’s website. Update any drivers, then try to run updates again and see if this resolved your issue. If it didn’t, continue to the next tip.

In the search box on the taskbar, type device manager, then select Device Manager from the list of results.

In the window that appears, look for any device with a yellow exclamation mark next to it. (You may have to select each category to view the list of devices.) Select the device name.

Select Action, and then choose either Update driver or Uninstall to correct the errors.

Common troubleshooting questions

If you are receiving an error message with a specific error code, try running the Windows Update Troubleshooter. If that doesn’t resolve the issue, see Fix Windows Update errors and follow the instructions to help resolve common update issues.

The time required to download and install updates depends on connection speed, network settings, and the size of the update. If the installation remains stuck at the same percentage, try checking for updates again or running the Windows Update Troubleshooter.

To check for updates, select Start > Settings > Update & Security > Windows Update > Check for updates.

To get help, in the search box on the task bar, type get help, then select Get Help from the list of results. To leave feedback if you run into further problems, in the search box on the taskbar, type feedback hub, then select Feedback Hub from the list of results.

Windows 10 is the most secure Windows ever, and we recommend you stay updated to protect your PC from security risks and to keep it running smoothly. However, you can temporarily pause updates as well as schedule a restart to install updates at a time that’s convenient for you.
Learn how to temporarily pause updates
Find out how to schedule a restart to install updates at a convenient time

You will only receive a notification when it’s time to restart your computer to apply the installed updates.

If you need to know where you left off in your work after an update, use Timeline to jump back in.

To get started with Timeline, select Task View on the taskbar, or press the Windows logo key +Tab and select the activity you want to resume.

Monthly quality updates on Windows 10 are quite small and have a minimal impact on data usage. Feature updates typically happen twice per year, and you can control when to install them. They require more data but are less frequent.

If you’re on a metered connection, some updates for Windows won’t be installed automatically. Metered connections in Windows 10

Your computer might be slow for a number of reasons, but updating to the latest version of Windows 10 can improve its performance. For help with a slow computer, see Tips to improve PC performance in Windows 10.

If you’re having trouble finding your files after an upgrade, see Find lost files after the upgrade to Windows 10 for other things to try.

Warning: Microsoft only recommends trying the procedures in this section if you’re comfortable working in the command line. These procedures require administrator permissions on your device.

In the search box on the taskbar, type command prompt, then select Run as administrator from the list of options. Select Yes. Next, in the window that appears, type the following commands one at a time, including the spaces as shown. After you type each command, press Enter. Then let each command complete before you type the next command.

net stop wuauserv

ren %systemroot%\softwaredistribution softwaredistribution.bak

ren %systemroot%\system32\catroot2 catroot2.bak

net start wuauserv

After all these commands are completed, close the Command Prompt window and restart your computer.

In some instances, third-party antivirus or security software can cause errors when you try to update to the latest version of Windows 10. You can temporarily uninstall this software, update your PC, and then reinstall the software after your device is up to date. We recommend using third-party antivirus or security software that’s compatible with the latest version of Windows 10. You can check compatibility by visiting the software manufacturer’s website.

Note: Before uninstalling software, make sure you know how to reinstall your programs and that you have any necessary product keys.

In the search box on the taskbar, type command prompt, and then select Run as administrator from the list of options. Select Yes. In the window that appears, type the following command, including the space as shown:
chkdsk/f C:
and then press Enter. Repairs will automatically start on your hard drive, and you’ll be asked to restart your device.

A clean restart starts Windows with a minimal set of drivers and startup programs. This helps eliminate software conflicts that occur when you install a program or an update that may cause issues updating your PC.
Learn how to do a clean restart

In the search box on the taskbar, type command prompt, then select Run as administrator from the list of options.

In the window that appears, type this command including spaces as shown:
DISM.exe /Online /Cleanup-image /Restorehealth

Press Enter. When the command operation has run successfully, you’ll see a confirmation message from Command Prompt that says, “The restore operation completed successfully” or “The operation completed successfully”.
Note: If you don’t see a confirmation message, retype the command and try again.

Next, type this command, including the space as shown:
sfc /scannow

Press Enter. Wait until the sfc scan verification reaches 100% completion, and then close Command Prompt.

Try running the Windows Update again.

Go to the software download page and select Download tool now to download the clean installation tool. Make sure to carefully read the notes on the software download page before using the tool.

Still stuck?

Contact Microsoft support if you continue to have problems with your Windows updates.

Fix Windows Update errors

What does this guided walk-through do?

This guided walk-through provides steps to fix problems with Windows Updates for Windows 8.1 and 7, such as taking a long time to scan, or error codes while installing updates.

For help with Windows Update issues in Windows 10, see Troubleshoot problems updating Windows 10 instead.

A common cause of errors is inadequate drive space. If you need help freeing up drive space, see Tips to free up drive space on your PC.

Common error codes

The steps in this guided walk-through should help with all Windows Update errors and other issues— you don’t need to search for the specific error to solve it. As an example, here are some commonly seen error codes: 0x0xc1900223223; 0x80240034; 0x8007000E, 0x80242006​, 0x80244018​, 0x80D02002​, 0x80246017​, 0x80240438​, 0x80070070​, 0x8007000D​, 0x80246008​, 0x80096004​, 0x80070020.
The steps provided here should help fix any errors that come up during the Windows Update process.

How does it work?

We’ll begin by asking you questions about the Windows version you’re using and the issue you’re experiencing. Next, we’ll take you through a series of troubleshooting steps that are specific to your situation. At the end of each step, you’ll be asked “Did this resolve the issue?” If it’s resolved, select Yes, and you’re done! If it isn’t resolved, select No and continue with the guided walk-through.

What to Do When Windows Update Gets Stuck or Is Frozen

How to recover from a frozen Windows Update installation

Most of the time, Windows Update does its job with little if any attention from us.

While we might check and install updates manually from time to time, most Windows 10 computers are configured to apply important updates automatically, while older versions like Windows 7 and Windows 8 usually apply these fixes the night of Patch Tuesday.

Sometimes, however, when the patch, or maybe even service pack, is being installed during shutdown or startup, the update installation gets stuck—freezes, locks up, stops, hangs, clocks, whatever you want to call it. Windows Update is taking forever and it’s clear something needs to be done.

The installation of one or more Windows updates is probably stuck or frozen if you see one of the following messages persist for a long time:

• Preparing to configure Windows. / Do not turn off your computer.
• Configuring Windows updates / x% complete / Do not turn off your computer.
• Please do not power off or unplug your machine. / Installing update x of x.
• Working on updates / x% complete / Don’t turn off your computer
• Keep your PC on until this is done / Installing update x of x.
• Getting Windows ready / Don’t turn off your computer

You might also see Stage 1 of 1 or Stage 1 of 3, or a similar message prior to the second example. Sometimes Restarting is all you’ll see on the screen. There might also be some wording differences depending on which version of Windows you’re using.

If you don’t see anything at all on screen, especially if you think the updates might have been installed completely but could be the cause of whatever you’re experiencing, see our How to Fix Problems Caused by Windows Updates tutorial instead.

Cause of a Frozen or Stuck Windows Update

There are several reasons why the installation or finalization of one or more Windows updates can hang.

Most often, these types of problems are due to a software conflict or a preexisting issue that simply wasn’t brought to light until the Windows updates started installing. Much more rarely are they caused by a mistake on Microsoft’s part regarding the update itself, but it does happen.

Any of Microsoft’s operating systems could experience freezing issues during Windows updates including Windows 10, Windows 8, Windows 7, Windows Vista, Windows XP, and others.

There’s an actual issue with Windows that can cause Windows Update installations to freeze like this but it’s only applicable to Windows Vista and only if SP1 hasn’t yet been installed. If your computer fits that description, install Windows Vista SP1 or later to solve the problem.

Make Sure the Updates Are Actually Stuck

Some Windows updates can take several minutes or more to configure or install, so you want to make sure the updates are truly stuck before moving on. Trying to fix a problem that doesn’t really exist might just create a problem.

You can tell if Windows updates are stuck if nothing happens on screen for 3 hours or more. If there’s any wonder after that long, take a look at your hard drive activity light. You’ll see either no activity at all (stuck) or very regular but very short flashes of light (not stuck).

Chances are that the updates are hung before the 3-hour mark, but this is a reasonable amount of time to wait and longer than we’ve ever seen a Windows update take to successfully install.

How to Fix a Stuck Windows Update Installation

Press Ctrl+Alt+Del. In some situations, the Windows update might be hung at a very particular part of the installation process, and you could be presented with your Windows login screen after executing the Ctrl+Alt+Del keyboard command.

If so, log on as you normally would and let the updates continue to install successfully.

If your computer restarts after Ctrl+Alt+Del, read the second Note in Step 2 below. If nothing happens (most likely) then move on to Step 2.

Restart your computer using either the reset button or by powering it off and then back on with the power button. Windows will start normally and finish installing the updates.

If the Windows update installation is truly frozen, you have no other choice but to hard-reboot.

Depending on how Windows and BIOS/UEFI are configured, you might have to hold down the power button for several seconds before the computer will turn off. On a tablet or laptop, removing the battery may be necessary.

If you’re using Windows 10 or Windows 8, and you’re taken to the sign-in screen after the restart, try tapping or clicking the power icon on the bottom-right and choosing Update and Restart, if available.

If you’re automatically taken to the Advanced Boot Options or Startup Settings menu after restarting, choose Safe Mode and see the comments in Step 3 below.

Start Windows in Safe Mode. This special diagnostic mode of Windows only loads the minimum drivers and services that Windows absolutely needs, so if another program or service is conflicting with one of the Windows updates, the install might finish up just fine.

If the Windows updates do install successfully and you continue to Safe Mode, just restart from there to enter Windows normally.

Complete a System Restore to undo the changes made so far by the incomplete installation of the Windows updates.

Since you can’t access Windows normally, try doing this from Safe Mode. See the link in Step 3 if you’re not sure how to start in Safe Mode.

During the System Restore, be sure to choose the restore point created by Windows just prior to the update installation.

Assuming a restore point was made and System Restore is successful, your computer should be returned to the state it was in before the updates started. If this problem occurred after automatic updating, like what happens on Patch Tuesday, be sure to change Windows Update settings so this problem doesn’t reoccur on its own.

Try System Restore from Advanced Startup Options (Windows 10 & 8) or System Recovery Options (Windows 7 & Vista) if you’re not able to access Safe Mode or if the restore failed from Safe Mode.

Since these menus of tools are available from «outside» of Windows, you can try this even if Windows is completely unavailable.

System Restore is only available from outside of Windows if you’re using Windows 10, Windows 8, Windows 7, or Windows Vista. This option is not available in Windows XP.

Start your computer’s «automatic» repair process. While a System Restore is a more direct way of undoing changes, in this case of a Windows update, sometimes a more comprehensive repair process is in order.

• Windows 10 and Windows 8: Try a Startup Repair. If that doesn’t do the trick, try the Reset This PC process (the non-destructive option, of course).
• Windows 7 and Windows Vista: Try the Startup Repair process.
• Windows XP: Try the Repair Install process.

Test your computer’s memory. It’s possible that failing RAM could be causing the patch installations to freeze. Fortunately, memory is really easy to test.

Update BIOS. An outdated BIOS isn’t a common cause for this problem, but it’s possible.

If one or more of the updates Windows is trying to install is involved with how Windows works with your motherboard or other built-in hardware, a BIOS update could solve the issue.

Do a clean install of Windows. A clean install involves completely erasing the hard drive that Windows is installed on and then installing Windows again from scratch on that same hard drive. Obviously you don’t want to do this if you don’t have to, but it’s a very likely fix if the steps prior to this one were unsuccessful.

It might seem likely that reinstalling Windows, and then these same exact Windows updates, will cause the same problem, but that isn’t usually what happens. Since most lockup issues caused by updates by Microsoft are actually software conflicts, a clean install of Windows, followed promptly by the installation of all available updates, usually results in a perfectly working computer.

Still Having Stuck/Freezing Issues Related to Windows Update?

If updates are stuck installing on or just after Patch Tuesday (the second Tuesday of the month), see our Details on the Latest Patch Tuesday piece for more on these specific patches.