While I agree that OEM computers come installed with a lot of crap, that's not a Windows problem, that's an OEM problem.
> Also the whole download and install drivers/utilities etc after installation is very time consuming because the OS has almost nothing bundle
The OS part of Windows is about 2 gigabytes (tried looking for source, but couldn't find one. Although this explains how you can fit a bootable emergency windows suite on a flash drive). The many other gigabytes are drivers. Plus, it's pretty disingenuous to blame Microsoft for Windows not supporting 3rd party devices, even though Windows checks for driver updates automatically.
Windows is as successful as it is because of Microsoft's cooperation with crappy OEMs who are only too happy to betray their customers for a quick buck.
You can't have Windows without the OEMs - show me the Microsoft PC you plan to buy. Microsoft does the best they can, working within their constraints, but at the end of the day they're throwing their product over the fence and letting someone else package it.
And you can't have good OEMs because Microsoft's PC strategy - with WHQL, PNP, UEFI, ACPI, and just about every other hardware initiative they've participated in, has been to make it difficult for hardware manufacturers to innovate in creative, non-standard ways without Microsoft's prior consent. Hence the race to the bottom among PC manufacturers. Cheap PCs, yes, but there's not much room for innovation that hasn't been green-lighted in some way by Microsoft and so the only PC manufacturers who do well are those who can survive on thin margins.
So yes, it is a Windows problem.
Microsoft under Gates and Balmer demonstrated very clearly that they couldn't be trusted to exert their influence over the hardware OEMs. They couldn't resist using their power to hammer small start-ups selling potentially threatening new technologies. So yes, they've lost this lever that might otherwise have been used to protect PC buyers.