I installed Windows 10 on my laptop and it seems to be running fine. The laptop was upgraded from Windows 7 64 bit Home Premium, it took about a 1/2 hour to install.
I turned off several features I didn't like:
wireless password sharing for guests on your network.
Something that had to do with Social Media, which I do not use.
I asked to be notified when to restart after updates. (I wish I had more control over that)
And several other privacy invading items. I don't want Microsoft to mess with my browsing habits.
And on the start menu, several things got clicked off.
I am waiting awhile to install it on my gaming rig. NVIDIA released a patch to help with Windows 10.