Yes, it will. The file used to be available online at a Microsoft URL. It used to get retrieved to the user profile automatically when activating the gadget and then updated regularly. The Microsoft online template went out of service soon after mainstream support ended.
When they retired all Windows-signed SHA-1 content last year, nothing actually changed in Windows 7 SP1 against their own claim. Them now claiming "We expect the SHA-1 certificate expiration to be uneventful" I guess means less than nothing will change.
MS has created additional inconvenience lately. They broke selfupdate of the Windows Update Client. The good news is there is no need to mess with version 7.6.7600.320 anymore.
Give KB3138612 a shot.
https://www.catalog.update.microsoft.com/Search.aspx?q=KB3138612
Regards, VZ
That would be a disadvantage of UEFI compared to BIOS I'm outright denying. UEFI launches the one Windows Boot Manager, which might as well be a Windows 7 one including an 8.1 entry.
Regards, VZ
The Windows 7 boot manager won't hurt Windows 8.1 in any way, shape or form. In theory you could install anything down to Windows Vista alongside anything up to Windows 10 without causing any damage.
Regards, VZ