If you’re a hard core Windows Insider, you’ll want to be one of the first to know when new Insider Builds are available for download and corresponding blog posts go up. You can always watch @donasarkars Twitter stream (and check the hints that builds are coming in images she posts), but if you have Hue or LIFX connected bulbs, you can use IFTTT to set up an Applet (used to be called a recipe) to get a visual alert.
There has been a lot of misinformation in the Insider’s Forum (from customers) about the necessary free space to install an Insider’s Build. I decided to take my only low memory device, an ASUS Vivo Tab 8 M81C-B1-MSBK Signature Edition Tablet that I purchased from the Microsoft Store, and test this out for myself. The device is 32GB to start with and was VERY full. A little over 4GB free space was available. Nevertheless, I was able to install an Insiders Build from a mounted ISO and subsequently download and install the latest Fast Ring Insider’s Build from Windows Update.
Here’s how I did all of this:
I used the following procedure to install 14372 from an ISO image. This is the process that should work for folks upgrading from 10586.xxx 1511 to the official release of the Windows Anniversary Update (with a few changes on where and how to get the ISO) with minimal free space.
The first problem is that the default Downloads folder was on C:\ and only a bit over 4GB of free space was available, so I needed to move Downloads to my 128GB microSD card. I wanted to move this at the System level as opposed to just specifying a different folder. The ISO for 32 bit Windows is 3GB+ and to say the least, with only 4+ free, I needed to download to a drive other than C:\.