The tool to be used to fix the corrupted bootmgr is 'DCDEedit'.
Boot Configuration Data (BCD) files deliver a store that is used to define boot applications and boot application settings. And BCDEdit is a command-line tool that is used to manage BCD. BCDEdit serves a variety of purposes, including adding boot menu options, creating new stores, and modifying existing stores.
According to the given scenario where Susan encounters a problem of corrupted bootmgr in her computer that needs to be fixed. In order to resolve the issue of corrupted bootmgr, the tool named 'DCDEedit' will be used.
You can learn more about boot manager at
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