Zend certified PHP/Magento developer

Windows boot doesn’t show as a option anymore

so i been with this issue like for 3 days, asked in microsoft community but nothing clear. My laptop was not to good since automatic repair, well for no reason a blue screen appeared and it was taking so long to restart so i just decided to shut down and when i pressed power button again, was on infinite loading, going to bios i discover that windows boot disappeared and now just appear my pen drive with .iso but doenst matter how much i try dont enter anymore in the blue screen with troubleshoot and cmd. any method to take back? the only thing that is opening it’s bios and boot manager.