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Fix Windows that has install that will not start

We'll fix boot order, media, and compatibility—or tell you when to call a pro.

Troubleshooting · Home maintenance
20–45 min
What you'll need
  • Windows install USB or DVD (created with Media Creation Tool)
  • Access to another PC (to create media)
Step 1 of 4

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Steps

Goal: Fix boot order, media, and compatibility so the install starts.

  • Check boot order—set USB or DVD first in BIOS, or use the boot menu key.
  • Good: Install screen appears. Proceed with installation.
  • Bad: Recreate media or disable Secure Boot.

Check boot order

Goal: Make the PC boot from the install media.

  • Enter BIOS (F2, Del, F10). Set USB or DVD first in boot order. Or use boot menu key (F12, F11, Esc) and select the media.
  • Good: Windows install screen appears.
  • Bad: Try a different USB port (USB 2.0) or recreate the media.

Recreate install media

Goal: Ensure the media is bootable.

  • On another PC, run Media Creation Tool. Create a fresh USB. Use 8 GB or larger. Try USB 2.0 port on the target PC.
  • Good: Install starts.
  • Bad: Disable Secure Boot in BIOS or call a technician.

When to get help

Call a technician if:

  • Known-good media does not boot on the target PC.
  • Hardware errors appear during install.
  • The drive or RAM may have failed.

Verification

  • PC boots from USB or DVD.
  • Windows install screen appears.
  • Install proceeds without hanging.

Escalation ladder

Work from the device outward. Stop when the problem is fixed.

  1. Boot order Set USB/DVD first; use boot menu key.
  2. Recreate media Use Media Creation Tool; try USB 2.0 port.
  3. Secure Boot and UEFI Disable Secure Boot; match UEFI/Legacy.
  4. Call a pro Known-good media does not boot.

What to capture if you need help

Before calling support or posting for help, have these ready. It speeds everything up.

  • PC model and BIOS version
  • Boot order and Secure Boot setting
  • Whether media boots on another PC
  • Steps already tried

Does the PC boot from the media?

Boot order and boot menu are common fixes.

Set USB/DVD first in BIOS or use boot menu key (F12, F11, Esc). Good: install screen appears—proceed with install. Bad: check media and Secure Boot.

Yes No

You can change your answer later.

Boot order and boot menu tried?

BIOS: set USB/DVD first. Or use boot menu key at startup. Try USB 2.0 port. Good: media boots. Bad: recreate media with Media Creation Tool.

Yes No

You can change your answer later.

Recreate install media

Use Media Creation Tool on another PC. Create fresh USB. Disable Secure Boot if needed. If still does not boot, run hardware diagnostics or call a technician.

Done

Install starts

Windows install screen appears. Proceed with installation.

Done

Reviewed by Blackbox Atlas

Frequently asked questions

Why would Windows install not start?
Wrong boot order, non-bootable media, Secure Boot blocking, or UEFI/Legacy mismatch. Check boot order and media first.
Can I fix Windows install that will not start myself?
Yes. Set boot order, recreate the USB with Media Creation Tool, disable Secure Boot if needed, match UEFI/Legacy to your disk.
When should I call a technician for Windows install?
If known-good media does not boot, or hardware errors appear during install. Drive replacement or professional install may be needed.

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