Here's my experience with Windows 10 so far:
Laptop:
Intel i7-3610QM, Kingston 2x4GB-1600MHz, Intel HD4000 + AMD HD7970M, Seagate SSHD 500GB
Desktop:
AMD Phenom II X6 1055T, 4x2GB-1333MHz, GTX 460 1GB, Samsung HD322HJ
First off I wanna say: The meta-data collection is real, bro! I consider myself extremely lucky that Cortana and related is disabled and not supported in Denmark, I don't want that
I made it a point to look through
every part that was reachable via the GUI. No command promt etc. During the OOBE I turned off pretty much everything, despite that, everywhere I went, under every rock I turned, there was some setting I could turn off that was basically just data collection.
This coincides well with the fact that it was free *tinfoil hat on*
Now, my laptop has a weird problem. With Windows 7 it will mess up the WiFi driver at reboot and I have to reinstall it. With Windows 8.1 I get a bluescreen while trying to install the AMD driver. I've tried
everything. I've learned to live with WiFi having to be reinstalled and new WiFi codes put in.
I really hoped Windows 10 could fix this. It couldn't, but I got to feel the intrusive Windows Update first hand, forcing AMD drivers on to the system causing BSODs. I eventually had to do a clean reinstall and just never connect to the internet, in order to actually get it tested.
This weekend I was attending a LAN with 11 people, so I thought it was a good chance to get Windows 10 gaming tested thoroughly with a wide variety of games.
The desktop machine in question is a very basic one, which I like. On Windows 7 it requires two drivers: Chipset and GPU (Internet included in chipset). On Windows 8.1 it just requires GPU.
On the desktop machine I was very happy with the OS. There was basically nothing it could mess up automatically, and it ran fast and smooth.
All the new games ran perfectly, some even better than my mate's Windows 8.1. He could barely tab in and out of H1Z1 without it crashing, while I had no problems.
The only issue I ran in to was Warcraft III. I couldn't update it, as it said I didn't have enough HDD space (120GB free). Made it run as XP SP3 and it was flawless.
I'm really digging the new Start menu, once you've customized it right. I don't understand why we need two Control Panels/Settings though, seems like a stupid idea to me.
And the lack of control over Windows Update is ridiculous. I would be okay with forced security updates for the greater good of all, but its current state is outrageous.
I've only had issues with Razer's software (BSOD all day on Windows 7), and I used a Razer Lycosa to install the machine. When I saw it getting automatically downloaded via Update, I immediately shut down my PC and found a basic Dell keyboard. Even after multiple restarts, it still wanted to install the Razer software. I had to Safe Boot and delete all the files in C:\Windows\SoftwareDistribution (which is basically Windows Update HQ) and reboot.
I'm glad to see this still works though, resetting Windows Update the cold way.
I will likely install it on my main system (see signature) in a few weeks. I need to test multi-monitor setups on the LAN PC, since it was crap in Windows 8.1.
Also, you might say "just turn off automatic device driver installation" (which you can do by searching for "device install" and it'll fill in the blanks), but that doesn't stop Windows Update.
That basically stops the machine from looking at Windows Update in the first place. I had it completely turned off on laptop and desktop, yet it still forced drivers via Windows Update.
Some people are reporting that Windows Update would even override their new, freshly installed GPU drivers - I didn't see this at all though.
Something I find interesting, is the fact that you can remove Internet Explorer on 7 and 8.1. Or rather, you can disable it in Windows Features. You can 't do that for Edge, but there's still an option to remove Internet Explorer - which sadly didn't remove Edge
All in all this is a great OS that just needs a bit of polishing, and then I can just hope that M$ takes their time with Cortana here in Denmark
Oh and PS: During the LAN I opened an FN Bayonet Tiger Tooth @ €339
I have a second Samsung HD322HJ unplugged in the machine, installed with a completely identical Windows 7 Pro SP1 x64. I actually installed this for LAN before deciding to try Windows 10, so it just worked as a backup if Windows 10 would fail something - which it didn't.
I will do some straight up comparisons to see if there's a measurable difference between the operating systems on a lower end/older machine. The GTX 460 1GB is one of the oldest cards that'll support DirectX 12 as far as I can tell.
But that's a little in the future, now I need to recuperate from LAN