So guys, let's flesh out a time line:
Win10 is the most insecure system ever devised. It has orders of magnitude more botnet than even North Korea's Red Star OS. Many experts consider it to be a virus rather than an OS due to the way it spreads by overwriting earlier Windows systems.
Win10's botnet subroutines and modules are now backported to Win7 and Win8 through windows update. There are scripts to disable this (Aegis Voat) but new updates reinstall all botnet settings so you need to continually run new scripts or permanently disable windows update.
Vista was when the botnet started to ramp up with telemetry features and Microsoft's acceptance of the PRISM program of NWO control. This explains why Vista was so slow that even normies used to running sluggish Pacard Bell shitboxes punched big dents into their Vista machine cases.
XP was rumored to have a backdoor to allow alphabet agency access. Rumor means its true but not fit to print or publish in mainstream newsmedia because it is too shocking/makes MS look bad/confuse tech illiterate normies. But the necessary corelibs, shell utilities and vital system components were lacking for it to be a true botnet.
When did the first ZOG backdoor appear? Win95? Win98? ME? Win2000?
Win3.1 was not an OS at all; merely a graphical shell over DOS so it is safe to use.
MSDOS had no botnet whatsoever. It is more or less pure and respecting of your freedom.
But there are alternative DOS sush as DRDOS that do everything better and have the same compatibility.
Going even farther back there is CP/M.
Which microcuk stole the idea for DOS.
Legend has it that if your power level is high enough to install it you will achieve negative botnet levels causing a burst of thick and glossy neckbeard growth.