setlocal EnableExtensions EnableDelayedExpansion
chcp 65001 >nul
:: 将系统安装日期/时间重置为当前时刻
:: 对应程序功能：HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion
:: InstallDate = REG_DWORD (Unix 时间戳，秒)
:: InstallTime = REG_QWORD (Windows FILETIME，UTC)
echo ========================================
echo 修改系统安装日期为今天
echo ========================================
echo.
net session >nul 2>&1
if errorlevel 1 (
echo [错误] 权限不足，请右键“以管理员身份运行”。
pause
exit /b 1
)
set "InstallDate="
set "InstallTime="
for /f "usebackq tokens=1,2 delims=|" %%a in (`powershell -NoProfile -Command "$ft=[DateTime]::UtcNow.ToFileTimeUtc(); $unix=[uint32](($ft - 116444736000000000) / 10000000); Write-Output ($unix.ToString() + '|' + $ft.ToString())"`) do (
set "InstallDate=%%a"
set "InstallTime=%%b"
)
if not defined InstallDate (
echo [错误] 无法计算时间戳（PowerShell 可能不可用）。
pause
exit /b 1
)
if not defined InstallTime (
echo [错误] 无法计算 FILETIME。
pause
exit /b 1
)
echo 将写入（64 位注册表视图）：
echo InstallDate = !InstallDate! ^(REG_DWORD^)
echo InstallTime = !InstallTime! ^(REG_QWORD^)
echo.
set "RegKey=HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion"
reg add "%RegKey%" /v InstallDate /t REG_DWORD /d !InstallDate! /f /reg:64 >nul
if errorlevel 1 (
echo [错误] 写入 InstallDate 失败。
pause
exit /b 1
)
reg add "%RegKey%" /v InstallTime /t REG_QWORD /d !InstallTime! /f /reg:64 >nul
if errorlevel 1 (
echo [错误] 写入 InstallTime 失败。
pause
exit /b 1
)
:: 读回校验
set "ReadDate="
set "ReadTime="
for /f "tokens=3" %%v in ('reg query "%RegKey%" /v InstallDate /reg:64 2^>nul ^| findstr /i "InstallDate"') do set "ReadDate=%%v"
for /f "tokens=3" %%v in ('reg query "%RegKey%" /v InstallTime /reg:64 2^>nul ^| findstr /i "InstallTime"') do set "ReadTime=%%v"
:: REG_QWORD 读回多为十六进制，转十进制再比对
set "ReadTimeDec="
if defined ReadTime (
for /f "usebackq delims=" %%n in (`powershell -NoProfile -Command "try { [uint64]'!ReadTime!'.Trim() } catch { 0 }"`) do set "ReadTimeDec=%%n"
)
set "ReadDateDec="
if defined ReadDate (
for /f "usebackq delims=" %%n in (`powershell -NoProfile -Command "try { [uint32]'!ReadDate!'.Trim() } catch { 0 }"`) do set "ReadDateDec=%%n"
)
if "!ReadDateDec!"=="!InstallDate!" if "!ReadTimeDec!"=="!InstallTime!" (
echo [成功] 重置成功。
echo 读回 InstallDate = !ReadDateDec!
echo 读回 InstallTime = !ReadTimeDec!
echo.
pause
exit /b 0
)
echo [警告] 写入后校验不一致。
echo 期望 InstallDate=!InstallDate! 读回=!ReadDate! ^(!ReadDateDec!^)
echo 期望 InstallTime=!InstallTime! 读回=!ReadTime! ^(!ReadTimeDec!^)
echo.
pause
exit /b 1
[/ol]复制代码
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