Fix: Can’t Install Windows 11 on Old, Unsupported PC

In this short tutorial, we’ll show you a new technique that you can use to download and install Windows 11 on a PC that's not support TPM 2.0 or have a supported CPU.


Note that if you do have bug reports and things like that to submit to Microsoft, it may not necessarily take them as your PC isn't technically supported.  


Anyway, all you have to do to update to Windows 11 from Windows 10 is open up our settings screen then head into update and security head to the Windows insider program wait for it to load and then click the get started button when it eventually shows up if you see something like below:

Fix, Can’t Install, Windows 11, Old PC, Unsupported PC, Not Compatible

you'll need to turn on Optional Diagnostic Data by clicking it and then go back and click Get Started and then you should be asked to sign in.


Now, you’ll get a new screen (Pick your Insider settings) showing three options:


Dev Channel

Beta Channel (Recommended)

Release Preview Channel

Fix, Can’t Install, Windows 11, Old PC, Unsupported PC, Not Compatible

Now, if you don’t have those three options and only see Release Preview Channel which is the latest insider preview version of Windows 10 and not Windows 11 then you probably don't have a supported device the Dev Channel and Beta Channel only show on supported devices and you're not able to select them. This guide is for people who only have the Release Preview Channel and not any of the Windows 11 options.


So if you're struggling to actually install the update then there could be a different issue. So To begin all you need to do is select the Release Preview Channel click Confirm, Confirm once again and you'll probably be asked to reboot your computer.

Now, that your computer's successfully restarted, how exactly do we get it to download the beta version of Windows 11 instead of the latest cutting edge versions of Windows 10 if they're even still making them well, all we have to do is open up a registry editor and do some interesting stuff.

Then click Start type regedit and open up Registry Editor. Then click Yes when prompted for admin and you'll see the Registry Editor.

Now, go ahead and collapse it back to the default state. Now, navigate on the left hand side into HKEY_LOCAL_MACHINE and click the expand icon next to it then SOFTWARE and then scroll all the way down to Microsoft after expanding Microsoft you'll nee to scroll down to WindowsSelfHost. Now, expand this as well and then expand UI and then on the right hand side you'll see UIBranch, all you have to do is double click it and then change it to Dev (with a capital D) and then click ok. Then double click on UIContentType as well and make sure that its value is set to Mainline and then double click on UIRing inside of here make sure it's set to External with a capital E and then click ok. Now we'll look back at the WindowsSelfHost folder on the left hand side and we'll look for Applicability inside of it we'll double click on BranchName and we'll change it from ReleasePreview to Dev with a capital D. Once again click ok.


Then double click on ContentType and we'll change the Mainline once again capital M and we'll look for Ring and we'll change it to External with a capital E. Once again, after this click ok close out of registry editor and then reboot your computer. Now, the computer is rebooted once again. Let's open up settings for a third time head across to update and security and this time you should see the Windows 11 Beta version as well as Windows 11 Insider Preview 10.0.2200.51 co-release. This is the latest Windows 11 Insider build.