Windows 11 Without TPM: How To Bypass the TPM Requirement and Install the OS

Windows 11 was just announced to the public and everybody has been itching to get their hands on the new OS. It comes with a revamped UI, a new start menu, under the hood performance improvements, and best of all? The ability to download and install Android apps on your Windows PC natively! No wonder everyone has been raving about the upcoming update. But this new update also has new system requirements to be compatible with most systems, on today’s market. One of these requirements is the necessity for TPM 1.2 on your system for proper security checks.

However, TPM 1.2 is a fairly new feature released around 2016 hence any PC manufacturer after that will have TPM 1.2. But what about older PCs? Well if you’re getting incompatibility errors when installing Windows 11 then chances are that your system does not have TPM 1.2. There is a workaround that you can try to bypass this restriction but keep in mind that you might still face some bugs on Windows 11. Here’s how you can bypass the TPM 1.2 requirement for Windows 11.

Does your PC have TPM? Check it first

Let’s check if TPM is enabled for your system or not. In case it is already enabled and you still face the same error message then this could be a hardware/driver-related issue that will need a technician to fix in most cases. If however, TPM is not available, then you can use the Fix below to bypass it on your system.

Use the guide below to check if TPM is enabled or disabled on your system. 

Press ‘Windows + R’ on your keyboard to bring up the ‘Run’ dialog box. 

Now type in ‘tpm.msc’ and press enter on your keyboard. 

The TPM check will now open up. Check the status section on your right. If the status reads “Compatible TPM cannot be found” or “TPM unsupported” then TPM is likely disabled or missing from your system.

Note: Be sure to check BIOS and enable TPM if your motherboard supports it. Here’s a guide below to do this.

How To Enable TPM 2.0 in BIOS for Windows 11 (and Secure Boot)

If however, it reads “The TPM is ready to use” then TPM is enabled and ready for use on your system. You can simply install Windows 11 like any other OS on your system then.

Case 1: Bypass TPM when installing using Windows Update

Microsoft just released the first preview of Windows 11 to all its users on the Windows Insider program. Bypassing the TPM 2.0 requirement on Windows 11 Insider build on older hardware is also tricky, but it’s possible, and the guide new will help you out.

To bypass TPM on the insider build you will need to first delete a setup config file, modify your registry, then enroll in the Windows Insider program and finally replace the appraiserrs.dll in your setup files. As these steps can be confusing to follow, the guide has been split up into 4 dedicated sections to help you along with each process. 

Step 1: Delete Setup config file

If you try updating Windows 10 to Windows 11 now, you will be greeted by the following error code “0cx190012e”. To bypass, this error, you will need to delete the ‘setupconfig.ini’ file from your local storage. Follow the guide below to delete the file. 

Press ‘Windows + E’ on your keyboard to open the ‘File Explorer’. Now navigate to the following location. 


Delete the ‘setupconfig.ini’ file from this location. 

Note: In case you do not have a ‘WSUS’ folder, then you can skip this step as the Windows 11 preview hasn’t been downloaded on your system. Once you download the preview in this guide, you can delete the setupconfig.ini file using this guide in case you face the “0cx190012e” error in the future. 

Step 2: Modify Registry

You will now need to modify your registry files in Windows 10 so that you can bypass TPM requirements and install Windows 11 on your PC. Follow the guide below to get started. 

Press ‘Windows + S’ on your keyboard and search for ‘regedit’. 

Click and launch the ‘Registry Editor’ app once it shows up in the search results. 

Now navigate to the following key. You can also copy-paste the address below in your Registry Editor address bar. 


Change the following values to the given outcomes. If the values are the same as given below, you can skip this step and move to the next one. Right-click on the dedicated value on your right and select ‘Modify’ to make the changes.


Change the following values.  

  • UIBranch: Dev
  • UIContentType: Mainline
  • UIRing: External

Now visit the following key. You can also copy-paste the address in the address bar at the top in the Registry Editor. 


Change the following values on your right, by right-clicking on them and selecting ‘Modify’. 

  • BranchName: Dev
  • ContentType: Mainline
  • Ring: External

Next, visit the key given below. 


Right-click on your right now and click on ‘New’. 

Select ‘DWord(32-bit) value’ and add the following two values one by one. You will have to create a new DWord key for the second entry after you have created the first one. 

  • BypassTPMCheck
  • BypassSecureBootCheck

Now right-click and modify the DWord values we created above and set both of them to ‘1’. 

And that’s it! You have now modified all the necessary registry values. You can now follow the guide below to enroll in the Windows Insider program. 

Step 3: Enroll in the Windows Insider Program

Press ‘Windows + I’ on your keyboard to open the ‘Settings’ app. Click and select ‘Update & Security’ at the bottom. 

Now click on ‘Windows Insider Program’ on your left. 

Enroll your PC into the Insider program by following the on-screen instructions on your right and signing into your Microsoft account. 

Once signed in, click on the ‘Channel selection’ section and select the ‘Dev channel’. 

You will now see a warning at the top that your PC does not meet hardware requirements. Do not worry, this is normal. Now click on ‘Windows Update’ in the left sidebar and click on ‘Check for updates’. The Windows 11 developer preview should now be listed in your Windows updates and it should begin downloading automatically. If you are on a metered connection, then you will need to confirm the same by clicking on ‘Download’. 

Wait for the download to complete. This could take anywhere from a few minutes to a few hours, depending on your network speed and bandwidth availability. Once downloaded, the Windows 11 setup will automatically start. Sadly, you can continue installing the OS at this point as you will still need to bypass the setup’s TPM restriction. Close the setup and replace appraiserrs.dll using the guide below to bypass TPM restriction. 

Step 4: Replace Appraiserrs.dll

appraiserrs.dll is a known file that when replaced with its Windows 10 counterpart helps bypass the TPM restrictions in the Windows 11 setup. appraiserrs.dll is a small file that can be easily replaced using the guide below. 

  • Appraiserrs.dll | Download Link

Press ‘Windows + E’ on your keyboard to open the File Explorer. Now navigate to the following directory given below. 


Tip: You can also copy-paste the same in your File Explorer address bar directly. 

Once you are at the location, download the Appraiserrs.dll file linked above and use it to replace the current appraiserrs.dll in the directory. 

Once replaced, you can now initiate the Windows update again and you should now be able to install Windows 11 on your system. Simply open the Windows Update section and check for updates again. You might get a ‘fix’ option to check for already downloaded files. Doing so will once again begin the Windows 11 setup, this time, without a restriction for the requirement of TPM. Follow the on-screen instructions to complete the setup according to your liking. 

And that’s it! Once the setup is complete, you will have installed Windows 11 insider build on an unsupported PC. 

Case 2: Bypass TPM when installing using an ISO file

Well, we will try to bypass TPM 2.0 when installing Windows 11. Here’s how to do it.

Fix: Edit and Repack the Windows 11 ISO to bypass TPM

If your system does not have TPM then you can try the workaround listed below. This involves modifying the install.wim file and converting it to install.esd file. This will help you bypass the TPM 1.2 restriction on most older systems and install Windows 11 on your PC without any issues. This can be done using two ways, either by using a third-party ISO tool or by using in-built tools in Windows. Follow one of the methods below that fits your current needs and requirements.

Step 1: Convert Windows 11 Install.wim to Install.esd

We will first need to convert the Windows 11 install.wim to install.esd. This file can then be replaced in the Windows 10 ISO which is compatible with systems without TPM 1.2. Using this repacked and modified ISO you can install Windows 11 on your system. Follow the guide below to convert Install.wim to Install.esd.


Navigate to the Windows 11 ISO on your local storage and right-click on it and extract it to a convenient location. In case you have Winrar installed on your system, you can also use it to extract ISO files to the desired location. 

Now navigate to the extracted files and open the ‘Sources’ folder. 

Find and locate the ‘Install.wim’ file and copy it to a preferred and easily accessible location on your local storage. 

Now press ‘Windows + S’ on your keyboard and search for ‘CMD’. 

Click on ‘Run as administrator’ on your right once CMD shows up in your search results. 

Now open the location for your ‘Install.wim’ file and copy the address in the address bar at the top of your screen. 

Once copied, go back to CMD, and type in the following command. Ensure that you replace “T:\Path” with the copied path in your clipboard. 

dism /Get-WimInfo /WimFile:T:\Path\install.wim.

You will now get a list of all the SKUs bundled in the ISO file. Find the SKU you wish to install on your system and note down its Index number. For example, we will note down the Index for Windows 11 Home for this example. 

Enter the following command in your CMD window and replace ‘INDEX’ with the index number you noted down for your desired Windows 11 SKU. Additionally, just like the last step, you need to replace “T:\Path\” with the path to your ‘Install.wim’ file on your local storage. 

dism /export-image/SourceImageFile:"T:\Path\install.wim" /SourceIndex:INDEX/DestinationImageFile:"T:\Path\install.esd" /Compress:recovery /CheckIntegrity
Press enter on your keyboard once you've entered the desired command.

Command Prompt will now start exporting and converting the image to .esd format. Wait for the process to finish and close the Command Prompt window once done, by typing in ‘Exit’.


Step 2: Replace ‘Install.esd’ in Windows 11 setup and repack the ISO (2 methods)

You can do this using an ISO software like UltraISO, or without using any ISO software. Here’s how.

Method #01 of Step 2: Replacing Install.esd using UltraISO

UltraISO is a third-party app that allows you to repack and reconfigure ISOs with ease. We will use this tool to repack our ISO with the converted file to install Windows 11 on your system under the guise of Windows 10. Follow the guide below to get you started. 


Download and install UltraISO on your system. Once installed, open your Windows 10 ISO using UltraISO. Delete the ‘Install.esd’ file located in the Sources folder for the Windows 10 image file. 

Now copy your converted ‘Install.esd’ file to the Sources folder in the Windows 10 image. 

Press ‘Ctrl + S’ on your keyboard. UltraISO will now save the new and repacked ISO file to your local storage. 

And that’s it! You can now use this new modified Windows 11 ISO to install Windows 11 without any TPM checks on your system. 

Method #01 of Step 2: Replacing Install.esd without using UltraISO

If you do not wish to install UltraISO on your system, then you can use this guide on your system. You will, however, still need the following things to move ahead with the process. 

  • Windows 10 Image
  • Windows 11 Image
  • ImgBurn | Download Link
  • Rufus | Download Link
  • A USB drive

Right-click the Windows 10 ISO on your local storage and mount it to a virtual drive. 

Now copy all the files in the virtual disk to a convenient location on your local storage. 

Head over to your converted ‘Install.esd’ file from Windows 11 ISO and copy it to your clipboard.

Now go back to the copied files from Windows 10 ISO and open the ‘Sources’ folder. 

Paste the copied ‘Install.esd’ file in this location. 

Proceed to delete the ‘install.wim’ file. 

Note: If you wish to install Windows 11 on the same system, then you can now simply launch setup.exe and proceed with the on-screen instructions. You do not need to follow the guide below. 

Download and install ImgBurn on your system using the link above and launch the program once installed. Click on ‘Create Image from Files/Folders’. 

Click on the folder icon beside the ‘Source’ tab. 

Select the folder with all your extracted and modified Windows 10 ISO files. Now Click on the folder icon beside the ‘Destination’ tab now. 

Now select a destination for your created ISO file and click on ‘Save’ in the bottom right corner. Once done, click on the ‘Folder to ISO’ icon at the bottom of your screen. 

Click on ‘Yes’ once prompted. 

If prompted for a Volume label, customize it according to your liking and click on ‘Yes’ once done. 

Click on ‘Ok’ once you’re presented with all the data for the process. 

Now click on ‘Ok’ once the process completes.

Close ImgBurn and launch Rufus. Now click on the drop-down menu for device and select your USB drive.

Click on ‘Select’ and select the ISO we just created.

Click on ‘Start’ at the bottom of your screen once everything is ready. 

Wait for the process to complete. Once completed, you can use the USB to boot Windows 11 setup to any system. 

And that’s it! You can now use this modified and repacked ISO to install Windows 11 on your system by bypassing TPM 1.2.

What else to do if it still doesn’t work?

In case the fix does not work for you then you can try replacing the appraiserres.dll in your modified ISO. This has known to fix the installation errors for some users and might be worth a shot if nothing seems to be working for you. 

Also replace appraiserres.dll in the ISO 

If you are still unable to bypass the TPM 1.2 requirement for Windows 11 on your system then chances are your system is quite outdated. Some users have been able to bypass such incompatibility errors by replacing the appraiserres.dll in the ISO file for Windows 11.

In case the above methods fail to work for you, we recommend you replace the appraiserres.dll file too in your modified ISO to fix your issue. This should help you install Windows 11 on most outdated systems. However, keep in mind that this workaround is only known to work on certain systems and might fail to work for you.

You can use this guide by us to easily replace appraiserres.dll in your modified ISO file. Simply replace the directory paths in the guide to the path to your modified ISO on your local storage. 

How To Replace appraiserres.dll in Windows 11 Setup

This is the last workaround you can use and if you still keep facing incompatibility errors on your system, then it might be time to upgrade your hardware.

Buy your way through

If you wish to get TPM 1.2 then you can buy a TPM chip — if you have a compatible header on your motherboard. However, if your motherboard is lacking a compatible header then you will need to upgrade your Motherboard itself.

Buy TPM chip

We hope you were able to bypass TPM 1.2 on your system using one of the methods above.

If you have any more questions or face any errors, feel free to reach out to us using the comments section below. 

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  1. Its worked for me… Thank you

    1. Glad to know!👍

  2. Thanks. Is there a way to fix it for a multi version ISO?

  3. Easier way of doing it… Download the Win 11 ISO. Create Win 10 bootable on usb drive. On the win 10 usb open sources and delete install.esd. Mount the Win 11 image. Go to sources and move the to the sources folder on your usb sources folder. Boot from Win 10 usb and install. Upgrade or Fresh. No need to convert the install file. Tried with Dev Win 11 iso and works. If your on Win 10 Pro it will be Win 11 Pro, If Home shows Win 11 Home. I did upgrade with Win Home and a fresh install using Win 10 Enterprise key.
    Tested on laptop with i7-5500U processor / No TPM with Win 11 Dev build

    1. Nope, the allocation limits a larger WIM file. Therefore this is not true or feasible, John.

  4. Juanito Sharkeesian

    Maybe you can upload a modified version of W11 Pro so people don’t have to follow this entire tutorial..?

  5. Nope. Tried all methods and nothing. Oh well, who cares?…I’ll just stick with Fedora Linux, OpenSuSE…and Debian. F*ck Microsoft and their ignorant Apple-esque way of thinking they can “bully” people into discarding their PC’s that they struggled to put together from only a few generations ago (I have a 6th Gen i7 ) PC that I built myself…and for quite a bit of money.

  6. appraiserrs.dll link pls if possible 🙂

  7. iliyes BOUKLI HACENE

    Appraiserrs.dll IS on windows10 ISO build. 177 Ko. It’s work

  8. The appraisers.dll link doesn’t work. I tried downloading the Windows 10 iso and copying and pasting but it still said TPM error. I tried the iso on Windows 11 but I can’t get it to allow me to copy and paste and replace files in the iso. What do I do?

  9. You mean TPM 2.0

    TPM 1.2 is not supported as much as if it were absent

  10. dism /export-image /SourceImageFile:”T:\Path\install.wim” /SourceIndex:INDEX /DestinationImageFile:”T:\Path\install.esd” /Compress:recovery /CheckIntegrity
    NOTE: the blank before “/SourceImageFile”&”/DestinationImageFile” is necessary.

  11. Appraiserrs.dll link is missing

  12. Just a note on the appraiserres thing, click fix once, let it fail again, replace the dll again, then immediate3ly after run the setup inside the folder directly, it will then proceed

  13. sukhi is the name of the user..
    not that good censoring..

  14. im currently stuck on insider build of 11 (the last on before MS start blocking unsupported systems) and cant find any info on how to bypass and start the update process. Tried all the above with no luck. Any suggestions? Thanks in advance

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