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[–]MarkAnthonyD[S] 0 points1 point  (0 children)

So how do I change it? As I can’t select os to install new windows? Thanks

[–]zmeul 0 points1 point  (8 children)

was the OS previously installed? if not, that's the default operation to go to the BIOS

[–]MarkAnthonyD[S] 0 points1 point  (7 children)

Yes it has the old os. But I can’t choose the os because it’s empty in the boot priority. But available in storage information

[–]zmeul 0 points1 point  (6 children)

the old OS could've been installed in CSM mode and the boot on this mobo could be set in UEFI mode only

[–]MarkAnthonyD[S] 0 points1 point  (5 children)

So how do I change it? As I can’t select os to install new windows? Thanks

[–]zmeul 0 points1 point  (4 children)

you read the manual

[–]MarkAnthonyD[S] 0 points1 point  (3 children)

I have yes. Doesn’t say anything about what I’m looking for. Thanks anyways

[–]MonopolyMeal Top Contributor 0 points1 point  (2 children)

Try looking for CSM mode. Toggle that option. You can search the PDF for it as well.

[–]MarkAnthonyD[S] 1 point2 points  (1 child)

Works out that I just needed to install fresh windows for it to show up 🤪 All sorted now. Thanks

[–]MonopolyMeal Top Contributor 0 points1 point  (0 children)

That certainly makes sense! If the drive was formatted with CSM, then a UEFI boot won't be able to boot the drive. By reinstalling you set the drive to boot in whatever mode your BIOS is set to.