Really know your way around a PC and feel comfortable troubleshooting problems, backing up data, formatting a hard drive, installing an operating system from scratch, or restoring your old one if necessary.
Know what an ISO file is and how to use it.
Aren't installing it on your everyday computer.
We're not kidding about the expert thing. So if you think BIOS is a new plant-based fuel, Tech Preview may not be right for you.
Things to keep in mind
Unexpected PC crashes could damage or even delete your files, so you should back up everything. Some printers and other hardware might not work, and some software might not install or work correctly, including antivirus or security programs. You might also have trouble connecting to home or corporate networks.
Also, if your PC runs into problems, Microsoft will likely examine your system files. If the privacy of your system files is a concern, consider using a different PC. For info, read our privacy statement.
What does it work with?
Technical Preview should work with the same devices and programs that work with Windows 8.1, but you might need to update or reinstall some of them.
Drivers for basic functions like storage, networking, input, and display come with Windows. These drivers allow you to complete the Windows installation and connect to the Internet. You might be able to get drivers from Windows Update.
For compatibility info, see the Windows 8.1 Compatibility Center.
If you use a mouse and keyboard
If you have a touch PC
If you want to go back to your previous operating system
You'll need to reinstall your version of Windows from the recovery or installation media that came with your PC (typically DVD media). If you don't have recovery media:
For Windows 7 or Windows Vista: Before you update, you might be able to create recovery media from a recovery partition on your PC using software provided by your PC manufacturer. Check the support section of your PC manufacturer's website for info.
For Windows 8.1 or Windows 8: You might be able to create a USB recovery drive. For info, see Create a USB recovery drive.
Processor: 1 gigahertz (GHz) or faster
RAM: 1 gigabyte (GB) (32-bit) or 2 GB (64-bit)
Free hard disk space: 16 GB
Graphics card: Microsoft DirectX 9 graphics device with WDDM driver
A Microsoft account and Internet access
Windows 10 Technical Preview 32bit
Windows 10 Technical Preview 64bit
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