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1.首先是机器必须是原装VISTA Basic!
2. 使用方法: 纯DOS下, 输入:bt / w 27 47 (注意:中间有空格)
最后的代码含义如下:: 41=VISTA 家庭基本版;43=VISTA家庭豪华版;45= VISTA商业版;47 =VISTA旗舰版
当提示: return = 0 说明修改成功
3. 对于想要使用win7恢复盘,使用下面的命令 BT / r 27(读偏移27H处的字节,27H处放置的是WIN7恢复盘的版本代码) BT /w 27 5A (把5AH写入偏移27H处)
Win7恢复盘代码含义:52:HomeBasic (x64) ;54:HomePremium (x64);56:Professional (x64) ;5A:Ultimate (x64)
BT参数含义:
-S : String format
-FN : filename
-L: within <begin> <end> Limits
-C <block>: Select block, CNFG,MFG0 are available now, default is MFG0
/W <offset> <data>: Write data to the offset in BIOS flash ROM
/W1 <offset> : Write barcode to BIOS flash ROM from offset
/R <offset> <data>: Read the offset data & check it
/RBit <offset> <Data>: read bit(data bit6~4) data and check with bit0
/WBit <offset> <Data>: Set(bit0=1) or Clear(bit0=0) Bit(data bit6~4)
/PD: System soft off
/CB: Clear reserved block in BIOS ROM
/WF <fn1> <fn2> .. <fnN>: Write data in file into BIOS ROM
/RF: Read data in BIOS ROM and restore to file
返回代码: OK(0), ERROR(-1)
举例:
BT.exe -s /r 9 9ABCD -> Read the 9th offset data & check it is '9ABCD'
BT.exe /rbit 2 21 -> Read 2nd offset data and check if bit2 is 1
BT.exe -l /w1 60 69-> Write barcode to the 60h~69h offset
BT.exe -l /r 60 69 > TEMP.DAT-> Read 60h~69h data & output TEMP.DAT
BT.exe -fn fl.txt /wf -> Write data in file described in fl.txt to BIOS ROM
BT.exe /wf d1.dat d2.dat -> Write data in d1.dat & d2.dat file to BIOS ROM