Lenovo T470s，win10能启动但是start栏都乱码，后来启动要bitlock key，找到输入启动后，去除了bitlock，当时觉得解除bitlock似乎很快就完成了。然后似乎是删掉了bitlock的key。
今天启动发现又要bitlock key，怎么办？
F1进BIOS、启动Windows安装盘也不行，要求先解锁bitlock
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Use Windows installation media to open up the command line, then execute the diskpart command and delete the partition, e.g.: list disk, select disk 0 or any other identifying the correct disk, list partition, select partition 1, or the encrypted one , in case there are multiple partitions, then delete partition override.
