If you're still unsure about upgrading to Windows 10, you have two weeks to do so for free. David Gewirtz leads a tour of how the upgrade went for 10 very different machines. The TL;DR version: mostly good, one really rough upgrade.

We're just about two weeks away from July 29, when Windows 10 upgrades will no longer be free. After a few months of on-again, off-again work, I've finished upgrading my stable of computers. I thought you might enjoy a walking tour of the upgrades, the good, the bad, and the ugly.

Quite obviously, my stable of machines is going to be different from yours. But you might find it instructive to see how the upgrade process went across a relatively wide range of machines, capabilities, and configurations.

I inventoried all the Windows machines here at Camp David. We have a total of fifteen that are known to boot. In addition, I have three dead machines that I've kept around either to repair someday or salvage for project parts.

If you add in all the Macs, the tablets, the dedicated file servers, the random single board computers, and the occasional robot, the only conclusion possible is that we have way too many computers for just two adults and a puppy. Sigh.

The first thing we did was decide which of the machines to upgrade, and which to leave with their existing Windows versions. Of the 15, we decided to upgrade 10 of them, and leave five as-is. The three dead machines were also left untouched.

With that in mind, let's dive in.

The 10 Windows 10 upgrades

All told, nine of the upgrades went quite smoothly. One was a royal pain. I'll run you through the list in the order I did the upgrades...

Read more: Windows 10: A tale of 10 upgrades | ZDNet