If you’re currently running either Windows 7 or 8.1, you should see a notification pop up in the lower-right corner of your screen informing you that Windows 10 is coming and that Microsoft is offering a limited time free upgrade. If it doesn’t pop up, have no fear – click the small Windows icon in your task bar and it should appear.
The icon should appear if you’ve got Windows Update enabled, but if you don’t, there’s another way to register. You just have to navigate to the Control Panel and click on the Windows Update menu.
Click on “reserve your free upgrade” in the app window and enter your email address to confirm that your registration has been approved. Once the OS is released on 29 July, you should receive a notification that allows you to schedule the installation time at a time that suits you. The update should’ve already been downloaded in the background.
Installation time may vary between computers, but Microsoft claims that it could take as little as 20 minutes on a high spec machine – so we estimate it’ll take around an hour for regular PCs. At least you don’t have to wait for the download first!
Windows 10 UK release date, price, features UK - New Product - PC Advisor