As annoying as it is, sometimes your computer won't boot or has other issues that prevent you from troubleshooting because you can't even get into the system. We've discussed how to get into Safe Mode on Windows 10, but you can't really do that if Windows won't boot.

Next time you need to get into Windows 10's advanced startup but the system is unbootable, here's the fix.

You'll need to make a Windows 10 bootable USB or DVD first, using another computer. We've shown you all you need to know to create this installation media. Next, plug the flash drive or place the DVD into your problem machine and boot from it instead of your system's hard drive.

You may need to enter the system's BIOS and change the boot order to look at the flash drive or disc first, if it doesn't allow you to choose it normally.

After a bit, you'll be greeted with the "Install Windows 10" screen. Advance past the language and keyboard settings, and on the screen with the "Install Now" button, instead click on Repair your computer in the bottom-left corner. You'll then have to choose between Troubleshoot and Turn off your PC; obviously we don't want to turn it off, so choose Troubleshoot.

Finally, click Advanced options. Now, you can access all the usual fixes — like System Restore, Startup Repair, and a command prompt — that should allow you to fix the system.

If you need more help, be sure to look through our solutions to common Windows booting problems.

Have you ever had to troubleshoot a Windows 10 system and used advanced repair? Let us know your experiences in the comments!

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