Cancel it. Restart your router, restart your PC, and run the tool as Administrator. Something is wrong.
Have you timed your Windows download recently? Let us know in the comments how fast (or slow) it went for you how long does it take to download windows 10
But 30 minutes later? You’re still staring at a progress bar. Cancel it
So, you’ve finally decided to upgrade to Windows 10 or perform a fresh installation. You click the "Download" button on Microsoft’s website, sit back, and wait. Cancel it. Restart your router
You likely have a failing hard drive or a virus. Stop trying to download Windows and run a disk check first.