I'm trying to upgrade my Windows 10 PC to Windows 11, but I have a dual-boot set?

[k2I05Ex56]

I'm trying to upgrade my Windows 10 PC to Windows 11, but I have a dual-boot setup with Linux. The Windows 11 installer keeps failing with error code 0x80070003. It seems to get stuck checking for space. Do I need to remove my Linux partition entirely for the upgrade to work, or is there a way to keep my dual-boot intact? Really don't want to lose my Linux setup.

[7659tK7490yq]

Same here! Thought it was just me.

[k2I05Ex56]

Thanks! I removed the Linux partition like you suggested, but now my computer just boots straight to Windows. How do I get back to the menu to choose between them?

[3357hzdp]

Agreed. Before you try that, can you confirm if your main Windows drive has at least 64GB of free space available?

[mKL2uTkP]

This. You'll need to repair the Windows bootloader; try opening an admin command prompt and running "bcdboot C:\Windows".

[11oxg]

Yeah, that should fix the boot issue. Also, temporarily disconnect any extra drives you aren't using for the upgrade to avoid confusion.

[vfm68]

Can confirm. Agreed, and one more thing—make sure your Windows drive is set as the first boot option in BIOS before starting the upgrade.

[919xwca]

Having the same issue here. Any updates?

[48gntju]

Same here. Yeah, that error's usually a storage driver or disk access issue. Try temporarily disabling the Linux bootloader from your BIOS before running the upgrade, that often fixes it.

[iI8VUdHPX]

Yeah, You could also try running the Windows 11 Installation Assistant instead of the Media Creation Tool, as it sometimes handles complex partitions better. Let me know if that works.