Microsoft released Windows 10 almost a year ago on July 29th, 2015. The software maker has offered its latest OS to Windows 7 and Windows 8.1 users as a free upgrade for the past year, but that offer is about to run out. You only have one day left to upgrade to Windows 10 for free if you're currently running Windows 7 or Windows 8.1. After July 29th, Microsoft will start charging $119 for upgrades to Windows 10, and if you upgrade during the free period you'll also get the Anniversary Update (launching August 2nd) free of charge.

The upgrade is an easy process which you can initialize from the taskbar upgrade notification on eligible machines, or you can follow Microsoft's guide. If you're planning to upgrade over the next 24 hours, make sure you've backed up all your important documents and data. You can read our full Windows 10 review here, or check out the latest updates coming to Windows 10 Anniversary Update right here.