New updates for Windows 7 Pro SP1 64-bit / Windows Server R2 64-bit (already up to date to March 2025): KB5055171 security and quality rollup for NET Framework 4.8 KB5055561 security monthly quality rollup KB5056456 servicing stack update Note: KB5055561 will update Internet Explorer to 11.0.375 (11.0.9600.22512) and will reboot the computer twice.
I just typed a long post about repeatedly getting an error message when trying to install KB5055171. Then I remembered that it was a .Net4.8 update and I hadn't been using the .Net bypass. Sometimes I even surprise myself with how damn stupid I can be. I've now installed KB5055171 successfully.
My situation was a little bit like yours but I had enabled .NET 4 ESU Bypass from esu bypass v13f settings. I then disabled that setting, then rebooted, then re-enabled and rebooted again and finally I was able to install KB5055684 from Windows Update. So thank you for this! You helped me even if by just accident. =)
For what it's worth I was able to install ndp48-kb5055171-x64_8b54e011ef2523e03e43bcef1f306e5aa59b79f3.exe with only ESU enabled by TSforge.