6 years ago I wrote about easily making USB media to install Windows 7. the process worked so well it’s been drilled in my head and I’ve been using that process ever since. Last week, I was in Montreal to meet the guys from the MITPRO. While I was there one local IT pro and I were trying to install the Windows 10 Technical Preview on a surface. and as much as I tried, the USB stick we created would not boot.
So we just knew we needed to figure out why. But first if Windows 10 is something you’re interested in. I recommend the Windows 10 Technical Preview Fundamentals for IT Pros MVA course. It’s full of great info.
Step 1- Download the Windows 10 ISO
Windows 10 Technical Preview is here today, but it’s a long way from done. We’re going to make it faster, better, more fun at parties...you get the idea. Join the Windows Insider Program and you can now get access to the ISO for build 10041. We downloaded the latest available build.
Step 2- Prepare the USB Stick
Use a USB with a capacity of at least 4 GB for the 32-bit version and 8 GB for the 64-bit version. Ensure that you have removed whatever files you have on it since the following process will wipe it clean.
1- connect the USB to a windows 7 or 8.1 machine (make sure to match the architecture 64bit OS to prep a 64bit USB stick…)
2- Open a Command Prompt Window with elevated credentials
3- Use the Diskpart utility to clean the drive, create a partition you can boot from and format it. Below is the captured output of that process. ( the command are in Blue and comments are in green)
4- mount the ISO you downloaded earlier and copy the entire content to the root of the USB stick we just created.
5- Once the copy is complete, change your focus to the USB drive ( mine is mapped as drive E: ) navigate to the Boot directory and update the boot manager using the following command from an elevated command prompt windows.
This is the part we was missing.
Once the Boot manager is updated. you can use the stick to boot and install Windows 10 Technical Preview.
I hope this is useful. go ahead install the technical Preview.