> By and large, they accomplish this feat by keeping around dlls from the 90s and reusing them. This is a primary reason why windows installs are now pushing 10

> By and large, they accomplish this feat by keeping around dlls from the 90s and reusing them. This is a primary reason why windows installs are now pushing 10+gb. Not really. I mean, sure, from my Win10 installation (which is around 11GB), 6.8GB are DLL files HOWEVER pretty much all of them are inside the WinSxS which aren't the "DLLs from 90s", but duplicates of various DLLs that applications bring along. Outside of WinSxS the only other place with lots of DLLs is System32, the bulk of which is taken by AMD's drivers and the rest of the DLLs take around 800MB. Then there is SysWOW64 where a similar layout can be found with most of the space being taken by AMD's drivers and around 500MB or so for the rest of the DLLs. Inside other Windows directories there are also around 900MB of various .NET installation DLL. So in total, the Windows DLLs, including .NET are probably around 2GB. However keep in mind that i have a ton of stuff installed, with pretty much every VC and .NET runtime that existed and my installation is a bit older than 3 years old, on a fresh Win10 installation will probably have less stuff in there.