How to remove or replace appraiserres.dll in Windows 11 installation

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October 12, 2021: A big update! Please note that you no longer need to replace the appraiserres.dll file in order to bypass TPM control and fix the installation error when installing Windows 11. You can simply delete the appraiserres.dll file, then run the setup file.


If you find yourself receiving a rather nasty error called “This PC cannot run Windows 11”, so well, don’t worry. This does not mean that your PC cannot really run Windows 11 or that it does not fail the Windows 11 compatibility test or system requirements. Whether or not you are trying to install Windows 11 in a virtual environment. Using VirtualBox, the two solutions below will resolve the issues causing the error. One solution is to replace the appraiserres.dll file in your Windows 11 installation folder, while the other is to try a different setting in VirtualBox.

How to remove appraiserres.dll file to bypass Windows 11 install error

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Step by step guide to remove appraiserres.dll

Download and install Winrar on your PC. Once installed, navigate to your Windows 11 ISO and right click on it. Now select “Extract files”.

Press “Enter” on your keyboard once the Winrar dialog opens.

The files will now be automatically extracted to the same directory in a folder with the same name as the file.

Now go to your extracted ISO folder and open the ‘Sources’ folder it contains.

Find the appraiserres.dll file in that location and then simply delete that file. Return to the parent folder again.

Simply run the setup.exe file by double-clicking it to restart the Windows 11 installation.

How to remove appraiserres.dll while creating a bootable USB drive

Here’s how to modify the Windows 11 ISO to remove the appraiserres.dll file and repackage it so that you can use a tool like Rufus to create a Windows 11 bootable USB drive that will bypass the TPM requirement.

Download and install Anyburn on your PC using the link below.

Once installed, launch the application and select “Edit Image File”.

Now click on the “Folder” icon and select the Windows 11 ISO in your local storage.

Click on ‘Next’.

The image will now open in a file browser window. Click on ‘Sources’ on your left.

Locate ‘appraiserrs.dll’ on your right. Click and select the file.

Now click on “Remove” at the top.

Click ‘Yes’ to confirm your choice now.

Now click on ‘Next’.

Enter a new name for your new ISO. This will allow you to save the changes to the same location on your local storage.

Do not make any changes to the ISO configuration and click “Create now”.

The process will now begin and you can follow the progress of it at the bottom of your screen.

Click “Exit” when you are done.

Anyburn will automatically close and close. You can now use the modified ISO and upgrade to Windows 11 using any of the methods below.

Then go to Windows 11

You can upgrade to Windows 11 either by using the ISO to upgrade directly from your current Windows installation, or by using the ISO to create a bootable USB stick if you want to format your drives. You can use this comprehensive guide from us to upgrade using any of the methods depending on your preference.

How to replace appraiserres.dll to bypass Windows 11 install error

October 12, 2021: You no longer need to replace the appraiserres.dll file because simply deleting it does the job – TPM checking will be disabled and you can install Windows 11 on an unsupported PC. Hence, ignore the guide below and use the first guide above on this page to simply remove the appraiserres.dll file and start the installation.

Here is how to replace appraiserres.dll file to fix “This PC cannot run Windows 11” error when installing Windows 11.

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Step by step guide to replace appraiserres.dll

Download and install Winrar on your PC. Once installed, navigate to your Windows 11 ISO and right click on it. Now select “Extract files”.

Press “Enter” on your keyboard once the Winrar dialog opens.

The files will now be automatically extracted to the same directory in a folder with the same name as the file.

Download appraiserres.dll on your PC using the link above.

Copy the appraiserres.dll file. Right click on the file and select “Copy”.

Now go to your extracted ISO folder and open the ‘Sources’ folder it contains.

Paste the appraiserres.dll file there and click “Replace file in destination” when prompted. After the file is replaced, close the folder.

Simply run the setup.exe file by double-clicking it to restart the Windows 11 installation.

However, if you were looking to boot it from a USB drive, you can now move the extracted ISO files to a USB drive and trigger Windows setup from your boot menu.

And that’s all! If you were unable to install Windows 11 due to an appraiserres.dll issue, it should now be fixed on your system.


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