Prepare This PC Tool - Get Windows 10 TP from Windows Update

[Matrix]

Prepare This PC Tool from Microsoft will let your Windows 7 SP1 or Windows 8.1 Update get Windows 10 TP from Windows Update.

Read more at Microsoft.

[HappyAndyK]

This is the tool which you download when you sign up for the Windows Insider Program.

[hackerman1]

Before downloading W10-TP you might want to read my post http://forum.thewindowsclub.com/tech...tml#post171255

"
But, be careful what you download and run !

"Important

• 
  
  • Remember, trying out an early build like this can be risky. That's why we recommend that you don't install the preview on your primary home or business PC. Unexpected PC crashes could damage or even delete your files, so you should back up everything.
  • After you install Windows Technical Preview, you won’t be able to use the recovery partition on your PC to go back to your previous version of Windows.
  
  
  

"

After registration, when you are on the download-page, the purple download-button links to a small exe-file (4.6 MB).

This seems to be an online-installer that will install W10-TP on your main partition = C-disk !
Which means replacing your existing O/S !!!

Further down at the page:

"Looking for ISO files?

If you're an advanced user and want to install the preview on another partition, another PC, or a virtual machine, we recommend you download the ISO files.

Get the ISO files
"

On that page you will find a "full" offline-installer, fx. the English 64-bit version is 4.1 GB

"

[HappyAndyK]

Thanks for the useful warning note, hackerman1.

[whs]

The best and safest way is to install W10TP in a virtual partition or on a flash drive.