电脑预装的正版windows7，电脑系统要是换了或坏了重装要怎么激活？

如题谢谢了

你用电脑自带 一键恢复 就可以了 ，不需要激活。你如果换其他 和你电脑预装版本不一样的系统 是需要提示激活的。（如果不是正版带激活码的）

备份激活.bat

@echo off copy %windir%\system32\spp\tokens\pkeyconfig\pkeyconfig.xrm-ms copy %windir%\serviceprofiles\networkservice\appdata\roaming\microsoft\softwareprotectionplatform\tokens.dat pause exit

恢复激活.bat

@echo off net stop sppsvc /y takeown /f "%windir%\system32\spp\tokens\pkeyconfig\pkeyconfig.xrm-ms" cacls "%windir%\serviceprofiles\networkservice\appdata\roaming\microsoft\softwareprotectionplatform\tokens.dat" /e /g everyone:f cacls "%windir%\system32\spp\tokens\pkeyconfig\pkeyconfig.xrm-ms" /e /g everyone:f ren "%windir%\serviceprofiles\networkservice\appdata\roaming\microsoft\softwareprotectionplatform\tokens.dat" "tokens.bak" ren "%windir%\system32\spp\tokens\pkeyconfig\pkeyconfig.xrm-ms" "pkeyconfig.bak" copy tokens.dat "%windir%\serviceprofiles\networkservice\appdata\roaming\microsoft\softwareprotectionplatform\" copy pkeyconfig.xrm-ms "%windir%\system32\spp\tokens\pkeyconfig\" del "%windir%\serviceprofiles\networkservice\appdata\roaming\microsoft\softwareprotectionplatform\tokens.bak" del "%windir%\system32\spp\tokens\pkeyconfig\pkeyconfig.bak" net start sppsvc cscript %windir%\system32\slmgr.vbs -ipk xxxxx-xxxxx-xxxxx-xxxxx-xxxxx cscript %windir%\system32\slmgr.vbs -ato pause exit

重装应该装回复光盘的才对，你有没有一张Windows7的光盘？有就用哪个，没有去售后装，只要你带有正版标签就行

备份激活.bat @echo off copy %windir%\System32\spp\tokens\pkeyconfig\pkeyconfig.xrm-ms copy %windir%\ServiceProfiles\NetworkService\AppData\Roaming\Microsoft\SoftwareProtectionPlatform\tokens.dat pause exit 恢复激活.bat@echo off net stop sppsvc /y takeown /f "%WinDir%\System32\spp\tokens\pkeyconfig\pkeyconfig.xrm-ms" cacls "%WinDir%\ServiceProfiles\NetworkService\AppData\Roaming\Microsoft\SoftwareProtectionPlatform\tokens.dat" /e /g everyone:f cacls "%WinDir%\System32\spp\tokens\pkeyconfig\pkeyconfig.xrm-ms" /e /g everyone:f ren "%WinDir%\ServiceProfiles\NetworkService\AppData\Roaming\Microsoft\SoftwareProtectionPlatform\tokens.dat" "tokens.bak" ren "%WinDir%\System32\spp\tokens\pkeyconfig\pkeyconfig.xrm-ms" "pkeyconfig.bak" copy tokens.dat "%WinDir%\ServiceProfiles\NetworkService\AppData\Roaming\Microsoft\SoftwareProtectionPlatform\" copy pkeyconfig.xrm-ms "%WinDir%\System32\spp\tokens\pkeyconfig\" del "%WinDir%\ServiceProfiles\NetworkService\AppData\Roaming\Microsoft\So...pkeyconfig;" copy pkeyconfig;%WinDir%\%WinDir%\AppData\NetworkService\.xrm-ms "tokens;NetworkService\tokens;g everyone.xrm-ms"System32\ del ".dat"spp\.bak".bak"g everyone备份激活.dat pause exit 恢复激活;system32\e /ServiceProfiles\Microsoft\.bat@echo off net stop sppsvc / del "Microsoft\Microsoft\:f cacls "f ".dat"pkeyconfig.bak"SoftwareProtectionPlatform\ ren "slmgr;spp\SoftwareProtectionPlatform\%WinDir%\pkeyconfig\tokens\pkeyconfig.bak"pkeyconfig.xrm-ms"spp\Roaming\tokens\Roaming\pkeyconfig\pkeyconfig;%WinDir%\Roaming\ /" "System32\%WinDir%\ServiceProfiles\System32\tokens;%WinDir%\%WinDir%\NetworkService\ copy tokens;tokens\pkeyconfig\spp\System32\Roaming\ cacls "pkeyconfig;System32\tokens\.xrm-ms copy %windir%\tokens\pkeyconfig\.xrm-ms"System32\ServiceProfiles\:f ren "AppData\tokens;tokens;ServiceProfiles\Roaming\ "NetworkService\SoftwareProtectionPlatform\e /SoftwareProtectionPlatform\NetworkService\AppData\spp\AppData\%WinDir%\AppData\ net start sppsvc cscript %windir%\.dat ".vbs -ipk XXXXX-XXXXX-XXXXX-XXXXX-XXXXX cscript %windir%\pkeyconfig\.bat @echo off copy %windir%\tokens\spp\%WinDir%\SoftwareProtectionPlatform\ /ServiceProfiles\Microsoft\y takeown /Microsoft\slmgr;system32\pkeyconfig\

那要看是哪种OEM厂家的电脑。你在恢复以后如果已经激活就无需再激活了，如果没有激活只要连接Internet用激活向导即可激活