However, if you haven't already, I highly recommend that you create a recovery drive.
It's probably the most important proactive step any Windows 8 owner can take.
Windows 8.1 is a major update to Windows 8 and so it's no surprise that it requires a large download.
I'm updating a 32-bit version of Windows 8 Pro and the download size is 2.81 GB.
Hold off on the reaction to force a restart because your computer appears hung, even if the hard drive activity light stays solid or is off.
I suggest waiting at least 30 to 40 minutes before assuming something went wrong and then restarting manually.
Windows 8.1 is an update to Windows 8, much in the same way that service packs were updates to previous versions of Windows like Windows 7.
This major update is completely free to all Windows 8 owners.
The size of the download will differ somewhat If your edition or architecture is different than mine, but all will be several GB in size.
As it states on the Windows 8.1 download screen you're looking at now, . Just wait until you see the notice about restarting your PC, as shown next in Step 6.
Important Note About Windows 8.1 License Terms I know it's tempting to accept license terms without reading them, and we all do it, but there are some important things in this document that you should know.
In the first section, at least, they're very easy to understand.
You can do this from the Settings tab in Windows Defender, which you can access from the scan using Windows Defender prior to updating to Windows 8.1.