Nejsi první. Čti:
https://pc.poradna.net/questions/831491-externi-disk-najednou-nenacita
https://pc.poradna.net/questions/1390333-pc-chce-formatovat-disk
https://pc.poradna.net/questions/3060382-po-pripojeni-externiho-disku-chce-zformatovat
https://pc.poradna.net/questions/2981837-externi-disk-neni-pristupny-a-pristup-byl-odepren
https://pc.poradna.net/questions/796406-nejde-otevrit-hdd-e-neni-pristupny
https://pc.poradna.net/questions/2915130-externi-disk-wd-elements-nejde-otevrit-ani-zformatovat
https://pc.poradna.net/questions/2915078-nepristupny-externi-disk-transcend-750gb-ve-win10-normalnim-rezimu
https://pc.poradna.net/questions/1575670-externi-harddisk-pristup-odepren
https://pc.poradna.net/questions/1609222-nejde-mi-nacist-externi-harddisk
https://pc.poradna.net/questions/851067-nefunguje-mi-externi-disk
https://pc.poradna.net/questions/229514-ext-hdd-soubor-nebo-adresar-je-porusen-a-neni-citelny
https://pc.poradna.net/questions/715127-externi-hdd-nejde-otevrit-vyzaduje-format
atd...