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不好意思...原来这里搞错了.修改一下
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综合我手上的各个版本的bootmgr和winload和ci收集一下一共有9个可能的root如下
Microsoft Authenticode(tm) Root Authority
Microsoft Root Authority
Microsoft Root Certificate Authority
Microsoft Test Root Authority
VeriSign Commercial Software Publishers CA 某个beta的vista的efi版的bootmgrfw.efi和winldfw.efi使用了他.其他都没有使用过
Microsoft Code Verification Root
Microsoft Digital Media Authority 2005
MS Protected Media Test Root 要求test signing
Microsoft Digital Media Authority 2005 for preview releases