If power was removed during a BIOS update, the BIOS may be corrupted. This can be pretty challenging to fix but, here are some [link|https://www.google.com/search?q=how+do+i+fix+a+corrupted+lenovo+bios&client=firefox-b-1-d&ei=X7tvY-6hKMaIwbkP3_OE0A8&oq=how+to+fix+corrupted+bios+lenov&gs_lcp=Cgxnd3Mtd2l6LXNlcnAQAxgBMgUIABCABDIFCAAQhgMyBQgAEIYDMgUIABCGAzoKCAAQRxDWBBCwAzoECAAQQzoGCAAQFhAeSgQITRgBSgQIQRgASgQIRhgAUMwGWIgRYMc3aAFwAXgAgAFriAHuA5IBAzUuMZgBAKABAcgBCMABAQ&sclient=gws-wiz-serp|search results|new_window=true] that my help.[br]
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If it was just a Windows update, then a simple OS repair may resolve the issue. More [link|https://www.google.com/search?q=windows+repair+disk&client=firefox-b-1-d&ei=AbxvY83yMbTKwbkPo-ixuAM&oq=windows+repair+disk&gs_lcp=Cgxnd3Mtd2l6LXNlcnAQAxgAMgUIABCABDIFCAAQgAQyBQgAEIAEMgUIABCABDIFCAAQgAQyBQgAEIYDMgUIABCGAzIFCAAQhgM6CggAEEcQ1gQQsAM6BwgAELADEEM6DQgAEOQCENYEELADGAE6DwguENQCEMgDELADEEMYAjoECAAQQzoGCAAQFhAeOggIABCABBCxA0oECE0YAUoECEEYAEoECEYYAVCyBViuG2ClKGgBcAF4AIABW4gBhwqSAQIxOZgBAKABAcgBEcABAdoBBggBEAEYCdoBBggCEAEYCA&sclient=gws-wiz-serp|search results|new_window=true] that may help depending on the version of Windows.