Using 10 on my work pc and my laptop with no issues. I'm not tracking with hard drive data loss discussions here. It's 2015 and it's all in the cloud! I run my entire business in the cloud and shut off the server. I'm an old dog but I slowly embraced it. Quick Books online, google apps, itunes, and a cloud based scheduling tool. The real benefit is that I can access everything from any internet device anywhere. I can create a spreadsheet or letter and share it in the shared folder for everyone to use. No more paper. The OS is irrelevant to the tasks as long as you have a browser! I have two internet feeds to the building with a hotspot option from any cell phone as a third option. If you think you can exist without the net, I challenge you to unplug it and try to function for a day.