UEFI not working after switching HDD to SSD

Swift-R
Swift-R Member Posts: 4 New User

I have bought an Acer Aspire E 15 Start (ES1-512-P6EL) and switched the included 500GB HDD to a 128GB SSD. Now, after installing Windows or Linux, it shows the no bootable device found message. I've been told that disabling the Secure Boot option in BIOS solves this problem but it's grayed out. If I switch to Legacy mode, everything works fine. I am using the latest BIOS.

 

Regards

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