Been with Windows since it's creation, DOS before that (I'd love to see the OP deal with a straight DOS environment).
Hated: 3.1, 95, ME (and its descendant MEII - Vista), 8.
Loved: 98, 98SE (Best of the 98 series), 7 and 10
I've got 7 systems at home of varying ages, all onto 10 - zero issues with any of them.
Over the first year (no longer doing straight IT/CTO admin, left that company) I oversaw staff migrations with plenty (4 digits) of PC's, laptops, and in some cases thin clients.
Only had one system give me issues, and that was resolved by a wipe and 7 install fresh then it's upgrade.
IMHO, the issue is the masses who simply do not like change. I'm not saying the OP may be in this group, but on the whole.
Too many complaints about windows 10 is that "It's not the same as ..." or "Well, you can install ________ to get your start menu back to 7, or 98 (Gag)"
Do all of these people have definable issues? Sure, I'm not discounting those with driver issues, or other issues encountered in the upgrade process, the masses of knowledgeable users that have descended into the forum with 1st posts screaming for help because they decided to upgrade to 10 and find that things either are not like they wanted, or have to now resolve those sporadic HW or SW issues that can arise during or after the upgrade, just like any other OS upgrade that has ever occurred.
To the ones who don't like change: 10 is here: deal with it, or stay on your old OS. Or, join the insider program and make useful constructive feedback to assist in determining the direction that 10 goes in, until now, we, as the mass user group have never had that type of opportunity with MS, take advantage of it.
To the ones with issues: Well, said before, were here to assist, but geez, there is enough empirical evidence that 99% of the time it is NOT windows 10 that was the root cause of the issue, but something 3rd party, HW or SW.
So until it's actually determined that is is a 10 issue, the whining about 10 doing this and 10 doing that is nothing more than the annoying whine of a mosquito to me that needs to be slapped silly and rendered dead, because in 99% of those issues, we have typically found a solution or workaround.
Now, all that said, I'm not without some issues, on my DV7 10 still continually tries to give me the latest synaptics touchpad driver, all options to not install drivers are on, and I think it's because its the fast builds, but so far each and every day, I go thru undoing it and reinstalling my older full cabaple one. am I complaining? Nope, you won't find a thread..... :)