How To Upgrade To Windows 10 quickly

How to upgrade to Windows 10 without waiting in line

Microsoft's Windows 10 upgrade is rolling out to millions of PCs
worldwide. 14 million machines are now running Windows 10,
but are you still waiting for your upgrade notification? If so, there's
an easy way to avoid the line and download Windows 10 and upgrade
 straight away.

Firstly, backup all your files and data just in case. If you're on
 Windows7 or Windows 8.1 then head over to 
Microsoft's Windows 10 download page. If you're on a 32-bit
version of Windows 7 or Windows 8.1 then download the 32-bit tool,
 and if you're using a 64-bit version then grab the 64-bit tool.
You can check your Windows version by right clicking on
My Computer or This PC in File Explorer and going to properties,
 and it will be listed under system type.

Run the tool and then select the upgrade your PC option.
Windows 10 will start downloading and once it's ready you'll
 be presented with three options: keep personal files and 
apps, keep personal files only, and nothing. Select the first 
option (keep personal files and apps) to ensure your PC upgrades
 and you keep your files and applications. Windows 10 will start
 installing and after a few reboots and customizations you'll be
 upgraded. If you install Windows 10 and decide you want to go
 back to Windows 8.1 or Windows 7 then you can safely restore 
by going to settings > update & security > and choose the option
 to go back to Windows 7 or Windows 8.1.