By now, most people who want Windows 10 on their PCs (and some who don’t) have probably installed the upgrade by now.
But there is at least one notable exception: If you don’t have enough free storage space on your hard drive, the installation won’t complete. This may result in a “Windows needs more space” dialog box, or one of several error codes (including 0x80070070 – 0x50011, 0x80070070 – 0x50012, or 0x80070070 – 0x60000).
Time’s running out to clear some space and complete the installation.