From start to finish on my quad-core i9 series CPU with 12 GB of DDR3 memory, an NVidia GTX 670 video card, and a solid state disk drive (SSDD) used for the C drive it took an hour and 5 minutes from start to finish of the install. Note during the install It's a good idea to customize the settings a bit where that option is displayed otherwise your computer is setup to share your contacts, typing information, and web browsing history with Microsoft and 'selected partners'.
Known problems thus far is one of my external disk drives is no longer accessible and my video card is no longer recognized by PowerDVD 14. I am a reboot away from the video card issue I believe as I have manually updated that driver. And I just noticed while proofreading this post that Windows has no audio devices installed and I have a couple of unknown devices shown in Device Manager so there are still obviously some issues. When I went to do a test connection to the work network via Firefox and our SSL VPN it stated I had no plugin installed yet it still worked and let me connect.
I use Backblaze for backing up my files and it can be kind of finicky but as far as I can tell it seems to be fine and has preserved my backup state which is great as I have close to 7 terabytes backed up with them and that initial sync took many months!
In spite of the issues above I'll have to say that overall Windows 10 is OK. It's easy to see it's targeted at tablets and touch screen PCs and I'll have to tweak the UI somewhat to take care of it as I have no desire for the mini tiles interface that appears when one clicks the Start Menu. Windows 10 does not seem appreciably faster navigating around, using the control panel or system management tools but it is not any slower either, and I'll see if it can shave any time off my already fast 24 seconds boot time I had in Windows as soon as I reboot.
One thing to me that is impressive I have a very old and dirty Windows 7 install. I had been putting off upgrading my C drive to a bigger drive as the current SSDD is only 250 GB until after installing Windows 10, so the fact that the install ran to completion and allowed me to login and web surf etc. is a testament to the stability and quality of the installation. Yes, I have a few issues but considering the install has to work across potentially millions of dissimilar PCs it's easy to understand why there can be a few bumps. I would have liked to just do a clean install but with the free version you have to install it via an upgrade and then you can make a kit for a clean install. Go figure, huh?
I'll let anyone who is interested know how this proceeds for me. I have a LOT of Programs to check, and the first one I tried had the video card issues so I do not know if that is a harbinger of things to come.
