A couple of years ago, I set up my machine to dual boot Windows 10 and Ubuntu. At that time, it worked as expected and I was able to switch back and forth between Windows and Ubuntu. Today, I tried to swap to Ubuntu and it did not appear in the boot menu, only Windows was there. The drive is still partitioned the way I left it. It has probably been a year since the last time I booted Ubuntu. Could one of the Windows updates have broken it? What can I try to resolve this?
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