我下了个32位的win7旗舰(2.42g),怎么判别是不是纯净的?
校验文件的md5或者sha1值:
Windows 7 Ultimate (x86) - DVD (Chinese-Simplified)
MD5: 3BE75DF53E0CFB3905AF0B4F4471C9F3
SHA1: B589336602E3B7E134E222ED47FC94938B04354F