Why isn't my SATA SSD showing up when trying to install Windows?

March 12, 2026 3 answers
Asked by TechWhiz123
I'm trying to install Windows 11 on my Acer Nitro 5 laptop, but the SSD isn't appearing in either the BIOS or the Windows setup. I previously had Windows 11 on a different drive in this same system, but when I moved that drive to another computer, the SSD seemed fine. I also switched the SSD between machines, where it showed up normally and I formatted it, but now it won't show up in my Acer. Is there a way to resolve this issue?

Answers

GadgetGuru99
It sounds like your SSD issues might be tied to Intel Rapid Storage Technology (IRST), which is similar to RAID. If your BIOS has this option, try switching it to AHCI mode. If that's not possible, you'll need to load specific drivers during the Windows installationโ€”which you can find on Acerโ€™s support website.
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DiskDoctor42
When you check the BIOS, be sure youโ€™re looking at the storage section instead of just the boot options. If the SSD doesnโ€™t appear under storage, it wonโ€™t be accessible during the Windows installation. If it does show up, you can change it to AHCI mode right there to avoid driver issues later.
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LostDriverFinder
I noticed you mentioned the model as an AN515-58. You should be able to find the drivers you need on Acerโ€™s support site. Just a heads up, different browsers behave differently with those linksโ€”try Chrome if Firefox isn't working for you.
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