If you receive notification to do a Windows 10 upgrade, proceed with caution. This upgrade is not a simple security upgrade, it is a full makeover.
Before you click that ‘Restart to upgrade’ button do it knowing you PC / Laptop will be out of use for at least 4 hours if not longer. And when the frustration of watching the % indicator not changing from one digit to the next, when you thing all is done, things won’t work quite as quickly as you would want.
Everything from your internet connection to your Google Chrome Browser, even opening a Word document is like watching paint dry.
Hopefully it will settle in and with a bit of keyboard mileage things will improve but it is a frustrating exercise particularly if you have work to do.