Windows 10 Upgrade Stuck at 99% or 0% – Fixed (9 Ways Included)

Posted by @Ivy

May 21, 2019

In this article, you can fix Windows 10 upgrade assistant stuck without effort. See below and find the way that works for your situation.

Overview of Windows 10 upgrade stuck

When it comes to Windows 10 upgrade stuck, you may only think about upgrading from the previous version of Windows (eg: Windows 7, Windows 8) to Windows 10 with Upgrade Assistant. However, you still need to upgrade drivers, service packs on Windows 10 with Windows Update. Thus, you can see 3 situations in the following. 

  • Windows 10 Upgrade Assistant stuck at 99% or 0%

During the downloading and installing process, you may find it stuck at 99% or 0% at a certain point. And this situation may last for hours.

  • Windows 10 update stuck at 99 or 0 percent (progress bar is stuck)

The Windows Update will automatically download the latest available updates for your computer. But you may find Windows Update stuck downloading updates and get stuck at some point.

  • Windows Update stuck in Windows 10 (the blue screen is stuck)

After the Windows Update downloads updates, Windows will install the ones it can, and save others to install when you restart your computer. During the process, you will access a blue screen and Windows 10 upgrade gets stuck at a certain point with the corresponding prompt like “Keep your PC on until this is done. Installing update 4 of 7…”

As for the reasons for Windows Update stuck in Windows 10, in general, these three reasons could be the most possible ones for a update stuck issue: errors with Windows Update; the pending Windows 7 Updates; hardware issues. However, the most important thing is to figure out how to solve the trouble. 

How to fix Windows 10 upgrade stuck at 99 or 0 percent effectively?

Around 8 common ways of fixing Windows 10 upgrade stuck will be introduced below. Choose the one that fits your situation most. 

Do nothing but wait

Sometimes, Windows 10 Upgrade Assistant seems stuck but it actually is running. The process usually takes 90 minutes or less. In some cases, it will take longer. The longest time record is 24 hours.

Fix Windows 10 Update stuck at 99% by updating missing drivers

The missing drivers may be one of the reasons to Windows 10 upgrade stuck. Before upgrading, you need to check and reinstall the drivers.

Step 1. Press Win + R to summon the Run window, type devmgmt.msc and hit Enter.

Step 2. Find the missing drivers. You can expand the categories and see if there is a yellow mark. In general, an exclamation mark will come with it.

Step 3. Download the driver from your PC manufacturer’s website and reinstall the missing drivers on your computer.

Update Windows 7 pending updates

The pending updates are the main reasons for Windows 10 Upgrade Assistant stuck at 99% or 0%. You need to update it first.

Step 1. Type windows update in the search box and select it.

Step 2. Click Check for updates under Windows Update.

Check for Update

Step 3. Just wait until you see the available updates and update it.

Step 4. Try to upgrade to Windows 10 and see if it works.

Fix Windows upgrade stuck at 99 by $GetCurrent folder

Step 1. Restart your computer.

Step 2. Go to the system drive, click Tools > Folder Options > View and tick Show hidden files, folders, or drives.

Show Hidden Files Folders

Step 3. Access $GetCurrent folder and name the second folder as media. In this folder, you still can see a regular Windows installation package. It’s Windows 10 creators update edition.

Step 4. Install Windows 10 creators update edition as normal.

Fix Windows 10 update stuck at 99 by a batch file

Step 1. Open notepad.

Step 2. Type the following text and save as fix.bat (the file extension must be .bat) on the desktop.

Step 3. Right-click the file and run as administrator.

Step 4. Restart your computer and try Windows Update again.

Upgrade to Windows with media creation tool

Media creation tool will create a setup file for Windows 10 and assist you reinstalling Windows 10.

Step 1. Download Windows 10 Media Creation tool on your system and install it.

Step 2. Follow instructions on this tool until you see Windows 10 setup screen. In this window, you should tick Upgrade this PC now and then click Next.

Upgrade This PC Now

Step 3. After finishing the downloading, click Accept and make sure Keep personal files and application option is selected. If not, you can click Change what to keep and change the settings.

Step 4. Click Install to start Windows 10 update.

Fix Windows 10 update stuck at 99 or 0 using troubleshooter

Windows includes a built-in troubleshooter, which can help you fix a stuck update. It can stop the Windows Update Services, clear Update cache (rename the SoftwareDistribution folder to SoftwareDistribution.old) and restart the Windows Update Services.

Step 1. Type troubleshooting in the search box and select it from the list.

Step 2. Click Fix problems with Windows Update.

Fix Problems with Windows Update

Step 3. Click Advanced and tick Apply repairs automatically.

Step 4. Click Next to start the repair process.

Clear Update cache manually in Safe Mode

Step 1. Boot into safe mode. You can hold down the Shift key as you click Power and Restart in Windows 10. And then navigate to Troubleshoot > Advanced Options > Windows Startup Settings > Restart > Safe Mode.

Step 2. Stop Windows Update Service via CMD. You can press Windows + X, select Command Prompt (Admin) from the list and type commands below in the pop-up window.

  • net stop wuauserv

  • net stop bits

Stop Windows Update Service

Step 3. Empty SoftwareDistribution folder. You can navigate to C:\Windows\SoftwareDistribution in File Explore and empty this folder.

Clear Update Caches

Note: There is nothing important here. And Windows Update will recreate what it needs at the next time you run it.

Step 4. Restart Windows Update Service. You can type the following commands in the command prompt and press Enter after each one.

  • net start wuauserv

  • net start bits

Start Windows Update Service

Step 5. Restart your computer and run Windows Update again.

In addition, you still can try to restore from a system restore point or directly reinstall Windows. If you do not have CD or DVD, you can reinstall Windows 10 without CD.

What to do after Windows 10 Upgrade stuck issue fixed?

Try above methods and find the one works for you. To avoid meeting the same problem again, you still need to create a system image with backup and restore software. It contains the operating system and all files related to your system. Thus, no matter what happens, you still can recover your computer.

If you prefer to easy-to-use backup software, I recommend you free AOMEI Backupper. It allows you to revert computer back to normal when you encounter Windows 10 update stuck at 99 or 0 again. You just need a backup image and save it to external hard drive or other storage devices. When the update issue occurs again, you can restore system image from external hard drive.

See the detailed steps below:

Step 1Download AOMEI Backupper, and open it.

Step 2. Click Backup and System Backup.

System Backup

Step 3. Select a path for your backup. If you want to save it to external hard drive, you need to plug it into the computer before you start to create system image backup.


Step 4. Set up settings if needed. You can click Backup options, Schedule, Scheme as shown in the following window and select the settings you like.


Note: you can enable email notification to get to know if your backup is created successfully. You can compress the backup image to get a smaller image file. Also, you can schedule an automatic backup in Windows 10 at a fixed interval, including Daily, Weekly, Monthly, Event-trigger.

In addition, you still can delete old backup and get more free space. But this feature is only available on the paid version. You need to upgrade to AOMEI Backupper Professional if you still use the free version.

Step 5. Click Start Backup to move on.

The way forward

To fix Windows 10 upgrade stuck, you can try above ways and find the one works for you. But it’s not enough to protect your computer. To avoid this issue, you need to create a system image backup with AOMEI Backupper. It’s a sure-fire way to restore your computer to a good state and keep all your files and programs.