December 19, 2022

Fix Ucrtbase.dll Was Not Found Error on Windows 10

Are you facing ucrtbase.dll missing or ucrtbase.dll was not found error on your Windows PC when running a few particular applications or games. If yes, this guide will definitely help you fix it. In this article, we have shown the solutions to solve ucrtbase.dll missing error in Windows PC.

Fix Ucrtbase.dll Was Not Found Error on Windows 10

How to Fix Ucrtbase.dll Was Not Found Error on Windows 10

The error code presents itself as:

The code execution cannot proceed because c:windowssystem32ucrtbase.dll was not found.

ucrtbase-dll-error message Windows

Few Common Ucrtbase.dll based error messages:

  • ucrtbase.dll was not found
  • Cannot register ucrtbase.dll
  • The application failed to start because ucrtbase.dll was not found. Reinstalling the app may fix the problem.
  • Cannot find [Path]ucrtbase.dll
  • ucrtbase.dll error loading
  • Ucrtbase.dll missing.
  • ucrtbase.dll crash
  • Unable to start [Application Name]. A required component is missing: ucrtbase.dll. Please reinstall.
  • ucrtbase.dll could not be located

The most common reason that causes ucrtbase.dll was not found issue on your PC when you accidentally delete the file from its original location. Here are other reasons as well, so here have a look at some of them:

  • Presence of any corrupt or missing files on your PC.
  • The antivirus program on your PC will block the DLL files causing you trouble.
  • Also, if there are any faulty programs on your computer, they conflict with any particular DLL files leading to the problem.
  • The device drivers are not updated to their latest versions.
  • There are a few hard disk drive errors or any incompatibility issues with the RAM memory.
  • You are running an outdated Windows operating system and thus all the DLL does not support the outdated version of your PC.
  • Your PC is infected with a virus attack or malware attack.
  • The DirectX and the Microsoft Visual C++ files are not updated to their latest versions.

The troubleshooting methods discussed below will work for all the above-mentioned errors no matter what you are seeing. You are advised to follow the methods in the same order as instructed.

Method 1: Register New Ucrtbase.dll File

You can start by re-registering the conflicting ucrtbase.dll file to fix the discussed issue. This can be easily done by using a command line as instructed below.

1. Hit the Windows key, type Command prompt and click on Open.

Type Command Prompt and click on Run as administrator

2. Now, type the regsvr32 ucrtbase.dll command in the command window and hit Enter key.

regsvr32 ucrtbase.dll command

3. Wait until the command is executed and restart your PC. Check if this works for you.

Method 2: Update Windows OS

Also, if there are any bugs in your PC, they can only be fixed after a Windows update. Microsoft releases regular updates to fix all these bugs thereby sorting ucrtbase.dll was not found.

Hence, ensure if you have updated your Windows Operating System and if there are any updates pending in action, use our guide How to Download and Install Windows 10 Latest Update

Update Windows. Fix Ucrtbase.dll Was Not Found Error on Windows 10

After updating your Windows Operating System, if the error is vanished now.

Also Read: Fix VCRUNTIME140.dll is Missing from Windows 10

Method 3: Repair System Files

Sometimes, a few of your system files can be corrupt due to several reasons like malware attacks, improper shutdowns, incomplete Windows update installations, etc. All these corrupt files will not let you operate normally on your computer. Hence if you face Ucrtbase.dll application error, you are advised to repair these corrupt files essentially.

Luckily, your Windows 10 PC has inbuilt repair tools like SFC (System File Checker) and DISM (Deployment Image Servicing and Management).

Read our guide on How to Repair System Files on Windows 10 and follow the steps as instructed to repair all your corrupt files.

Run SFC and DISM command lines to repair system files.

Method 4: Update DirectX

To enjoy a seamless multimedia experience on your PC, you have to make sure whether DirectX is installed, and it is updated to its latest version. DirectX helps you improve the visual media experience for graphical games and applications especially. Follow the instructions in our guide on How to update DirectX in Windows 10 to implement the same.

Update DirectX

Now, check if you can fix ucrtbase.dll was not found issue.

Also Read: Fix Error 1310 Verify That You Have Access to That Directory

Method 5: Repair Microsoft Visual C++ Redistributable

Alternatively, you can try to repair the Microsoft Visual C++ Redistributable packages to fix. Ucrtbase.dll application error as instructed in our guide How to Repair Microsoft Visual C++ Redistributable.

click on Repair

Method 6: Reinstall Microsoft Visual C++ Redistributable

If the previous method of repairing the Microsoft C++ Visual Redistributable did not fix ucrtbase.dll was not found, then you will have to reinstall the redistributable. Follow the given steps in our guide on How to Reinstall Microsoft Visual C++ Redistributable to reinstall the packages again.

Open Microsoft Visual C++ Redistributable page

Method 7: Update GPU Drivers

Graphical drivers are responsible for normal functioning of your system processes. If you face ucrtbase.dll was not found issue, make sure you use an updated version of device drivers, as they serve as a link between the hardware and the Operating System of your PC. Many users have suggested that updating drivers has fixed ucrtbase.dll missing error. Read and implement the steps instructed in our guide 4 Ways to Update Graphics Drivers in Windows 10 to do so.

Update graphics driver

Method 8: Reinstall GPU Driver

If you still face ucrtbase.dll was not found issue after updating your GPU drivers, then reinstall device drivers to fix any incompatibility issues. There are several ways to reinstall drivers on your computer. Yet, you can easily reinstall Graphical drivers as instructed in our guide How to Uninstall and Reinstall Drivers on Windows 10.

click on uninstall device. Fix Ucrtbase.dll application error


After reinstalling GPU drivers, check if you have fixed Ucrtbase.dll issues on your PC.

Also Read: Fix Runtime Error C++ on Windows 10

Method 9: Disable Antivirus Temporarily

Your antivirus program may mistakenly prevent any new latest updates of DLL files from being installed on your PC. Many compatibility issues are identified by several Windows users they are difficult to tolerate and rectify. Antivirus software like Norton and Avast may prevent a few essential files of your PC and you are advised to disable any inbuilt or third-party antivirus software temporarily to resolve the same.

Read our guide on How to Disable Antivirus Temporarily on Windows 10 and follow the instructions to disable your Antivirus program temporarily on your PC.

Disable Antivirus Temporarily. Fix Ucrtbase.dll Was Not Found Error on Windows 10

After fixing ucrtbase.dll missing error on your Windows 10 PC, make sure to re-enable the antivirus program since a system without a security suite is always a threat.

Method 10: Run Malware Scan

Several Microsoft experts suggest that, scanning PC will help you maintain your computer threat free. If there are any virus or malware intrusions in your PC, you will face ucrtbase.dll missing error.

Hence, you are advised to scan your computer as instructed in our guide How do I Run a Virus Scan on my Computer?

Choose a scan option as per your preference and click on Scan Now

Also, if you want to remove malware in your computer, check our guide How to Remove Malware from your PC in Windows 10.

Method 11: Perform System Restore

There are many circumstances where the latest Windows update has broken the wireless mechanism of your computer. If the current version of your Windows 10 PC interferes with the existing architecture of network configurations, you will face the discussed Ucrtbase.dll application error. System Restore will bring back the computer to the version where it was working without any errors.

To do so, follow our guide on How to use System Restore on Windows 10 and implement the instructions as demonstrated.

confirm the restore point by clicking on the Finish button. Ucrtbase.dll application error

After restoring your Windows 10 PC, check if can use your PC without any DLL errors.


We hope that this guide was helpful, and you could fix ucrtbase.dll was not found issue in your device. Let us know which method worked for you the best. Also, if you have any queries/suggestions regarding this article, then feel free to drop them in the comments section.