Low Screen Resolution When Booting into Macrium Reflect Free Rescue

Have you updated the rescue media to the latest version?
That was a problem with an older version of Macrium/rescue media.
Set screen resolution when rescue media is created
Screen resolution capped at 800 x 600

swDev3dbtf said:

Thank you @Bastet and @Helmut for your responses.
I'm using the latest August 2020 version or MR Free.

I've tried making the Rescue Media > Select Device to both:
a) Windows Boot Menu (so I don't need to find/use use a USB/CD/DVD)
and
b) Removable USB Flash Drive.

No luck, still 800x600 and no other resolutions whether I boot from the USB or Windows Boot Menu.
@Helmut - Your screenshot shows CD/DVD - I've not tried CD/DVD - do you think that would make a difference vs USB or Windows Boot?

Thanks again and still stumped, but maybe I should just accept the low resolution and move on.

There is an option in Reflect that you set that sorts this. You click on options tab or something like that. Not at pc to find exact screen.

If that does not work, then recreate usb drive, using winpe mode, and instead of selecting winpe 10 mode, select Winpe 5 mode. If that fails try Winpe 4 mode.

Helmut said:

Your UEFI/BIOS will be different from mine (Toshiba), but using Win10 RE option works here with USB flash drive or CD-RW. Both were tested a few days ago.

These are extracted from my old notes from around 2018, I do not suggest you do this, too much faffing around.
Win PE 10 makes rescue disk only in low resolution 640 x 480, no scrolling possible and impossible to use.
Something to do with UEFI BIOS implementations on some machines.
Win PE 10 can be made to work at other resolutions by copying in an older 'bootx64.efi' file to ovewrite the one in a USB flash drive rescue media.
Alternatively use Win PE 5.

There is a setting in WinRE mode that fixes this. I know it works as my Lenovo has the same issue.

Helmut said:

Your UEFI/BIOS will be different from mine (Toshiba), but using Win10 RE option works here with USB flash drive or CD-RW. Both were tested a few days ago.

These are extracted from my old notes from around 2018, I do not suggest you do this, too much faffing around.
Win PE 10 makes rescue disk only in low resolution 640 x 480, no scrolling possible and impossible to use.
Something to do with UEFI BIOS implementations on some machines.
Win PE 10 can be made to work at other resolutions by copying in an older 'bootx64.efi' file to ovewrite the one in a USB flash drive rescue media.
Alternatively use Win PE 5.

cereberus said:

There is a setting in WinRE mode that fixes this. I know it works as my Lenovo has the same issue.

@Helmut and @cereberus is this the setting you are referring to in your above quoted posts ?

swDev3dbtf said:

Thanks for the help everyone.

It turns out the solution in my case is to disable BIOS Secure Boot before booting into Macrium Reflect in order to get resolutions including 800 x 600 and higher.

Prior to my original post, I had tried different base WIMs with and without the "Enable legacy EFI screen" option, but that was all with Secure Boot enabled - and still only 800 x 600 was available.

I'm using Windows RE base WIM option and everything is fine other than the fact the I lose about an inch of screen real estate on all four sides with Secure Boot disabled, but I get to choose higher screen resolutions . Scrolling works too.

With Secure Boot enabled, MR uses the entire 22" screen @ 800 x 600.

I'll update if I figure out how to have my resolutions and get rid of the screen real estate loss on all four sides.

Thanks again everyone

Interesting - I wonder if the Macrium Reflect Team are aware of this. You have to have a paid version to inform them thhough.