Just used this to change Kernel-MaxPhysicalPage and Kernel-WindowsMaxMemAllowedx86, so that W10 22H2 x86 could use all my 8GB of ram. Wonderful (also thanks Geoff Chappell). The only flaw is that the disable sppsvc button doesn't seem to work, and I had first to manually set start=4 to it in HKLM\SYSTEM\CurrentControlSet\Services.
Thanks for that Tool, didn't know that something like this exists. Tested the interesting Policy called "Microsoft-Windows-IE-InternetExplorer-IEAppDeprecation" and some others in a Windows 10 VM. Using the guide from post 1. Taking ownership of the HKLM ...ProductOptions - Key and disabling "Inheritance Rights" Chaning the Access for a unknown GUID and SYSTEM to Read-Only and bootet back to setupmode=1 ... re-enabling the sppsvc and windows finished login. After that checking the f*ck* deprecation message which prevents iexplore.exe to launch. Even with running sppsvc the changes don't get removed. Also Windows is still activated. Maybe someone figured it out in this thread earlier...
If anyone cares, on my Windows 7 offline install I - renamed the spp folders in System32/ SysWOW64 - set the GenuineLocalPolicy to 1 - left sppsvc running get no popups on notepad etc. when using windows for a few hours.