- DLL files are library files that exist on your Windows PC, and they are used by a wide variety of programs
- These files can be modified or deleted, although this is not recommended since you never know what system features may be affected.
- We have plenty of similar articles in our dedicated hub for troubleshooting DLL issues, so make sure to visit that as well.
- For even more great guides, check out our Windows 10 Fix page.
Windows 10 Dll errors may happen at times for some users due to several reasons.
The most common reasons for the missing or corrupted Hal.dll root file in System32 is due to your PC turning off unexpectedly or not saving your files properly.
How to fix the missing or corrupt Hal.dll system32 root file?
The Hal.dll file is an essential file in your root System32 folder that can cause your PC to display a Blue Screen at startup or for it to restart constantly.
Here are some errors you might see if your Hal.dll file is missing or corrupt:
Windows could not start because the following file is missing or corrupt: C:Windowssystem32hal.dll. Please re-install a copy of the above file.
Cannot find WindowsSystem32hal.dll
C:WindowsSystem32Hal.dll missing or corrupt: Please re-install a copy of the above file.
1. Try restarting your computer
Restarting your Windows 10 PC can sometimes fix the issue. This is because the file can restore itself to normal when you restart your computer.
For this to work, you would need to click on the physical Restart button on your Windows machine. If your machine does not have a physical restart button, then press the Turn on / Turn off button on your machine for 5 seconds, then turn your PC on again.
If your issue has still not been fixed, please follow the below next steps.
2. Check the BIOS boot sequence
- Turn off your PC
- Turn your PC back on, then immediately start pressing F2 continuously until you are prompted with your BIOS menu
- Navigate over to the Boot tab or option, then select your main SSD (or HDD) on which Windows 10 is installed as your first choice
- Save your settings, exit the BIOS, then start your Windows 10 PC as normal
- The missing or corrupt Hal.dll error should now be fixed
Note: Your BIOS menu might be different depending on what kind of PC BIOS software you have.
3. Use the Windows 10 Startup Repair feature
- If your issue has not been fixed, you will be prompted with a Windows Automatic Repair screen. Click on Advanced Options
- Select the Startup Repair option
- Windows will then start diagnosing your PC for errors and automatically fixing any issues, including the missing/corrupt Hal.dll file error
- Is your Master Boot Record missing? Here’s what to do
4. Your SDD or HDD might be corrupt
Your storage device on which Windows 10 is installed might be malfunctioning and not working properly.
We have a guide dedicated to checking to see if your SSD or HDD is not working properly as well as fixes for this issue, which you can check here.
5. Reinstall your Windows 10 OS
The last option to fix the error would be to reinstall your Windows 10. A clean install of Windows 10 will reset all your files to normal and fix the missing/corrupt Hal.dll file error.
You should only approach this method if none of the above solutions work. For this, please follow our guide on how to clean install Windows 10.
FAQ: Learn more about Hal.dll and system32
- What is Hal.dll?
Hal.dll is a system process on your Windows PC needed for it to work properly. The Hal.dll file located in your root Windows system32 folder and abbreviation for Windows Hardware Abstraction Layer.
- Where is Hal DLL located?
The Hal.dll file is located in the same location as most other DLL files. If you notice that it is not there, check out this guide on what to do in case of missing DLLs.
- What is a HAL error?
A HAL error is caused by the Windows system not recognizing the Hal.dll root file. This is usually due to the file itself being either missing (deleted by mistake) or corrupt.
Editor's Note: This article was originally published in April 2020 and was revamped and updated in November 2020 for freshness, accuracy, and comprehensiveness.