Can you name an OS that has superior memory management to windows?
Apple's OSX has been bonkers on that front since Lion... Maverick pushed compression to make up for it.
In my opinion Windows is actually pretty decent these days, especially considering how well it runs on Bay Trail devices with a paltry 2GB of memory.
The fact that Microsoft is running multiple OS's on Xbox and can do everything the PS4's OS can do like downloading in the background... And still use the same/less memory is a testament to Microsoft's software engineering.
Linux, FreeBSD and anything based on XNU really.
Especially XNU's memory managment is far surperior to Microsoft's, being able to run from a desktop to a watch without much problem and without RAM spikes that go up to 9GB's while no applications are visably open.