运行PowerShell进程时如何阻止Windows 10机器休眠/休眠？
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【中文标题】运行PowerShell进程时如何阻止Windows 10机器休眠/休眠？【英文标题】：How to stop a windows 10 machine from sleeping/hibernating down when running a powershell process? 【发布时间】：2021-03-17 06:52:05 【问题描述】：我有一个 powershell 进程，它从远程服务器读取记录并将它们复制到本地数据库中。运行时，可能会运行 8-12 小时。
如何防止计算机在此期间关闭（或进入睡眠/休眠模式）？我知道我可以调整“电源和睡眠设置”以将计算机设置为永不睡眠，但这不是我想要的 - 我确实希望它在进程进入睡眠状态>没有运行。
我知道如果 netflix 或 youtube 视频正在运行，睡眠/休眠会暂停，我希望计算机在 powershell 进程运行时也这样做。
powershell 进程在桌面上的命令窗口中运行 - 我很高兴屏幕保护程序激活，但我不希望发生的是让我在 8 小时后唤醒机器并发现该进程只跑了 10 分钟，电脑就进入睡眠状态！
【问题讨论】：
查看此链接：***.com/questions/2284601/…，然后找到将其从 c# 转换为 PowerShell 的方法。使用反射可以做到。 如果您已经有一个工作脚本，那么您可以在任务计划程序中创建一个新任务，有一个条件选项卡，您可以在其中勾选“唤醒计算机以运行此任务”复选框 @Iww - 我已经这样做了！ - 任务调度程序唤醒以启动进程，但不久之后计算机再次进入睡眠状态！ 【参考方案1】：通过一些额外的努力，您可以使用标准powercfg.exe utility实现所需的行为，方法是使用按需创建的自定义、始终开启的电源方案并在脚本运行期间临时激活：
注意：
在下方寻找评论# YOUR CODE GOES HERE。
有关 .NET/基于 Windows API 的替代方案，请参阅this answer。
# Define the properties of a custom power scheme, to be created on demand.
$schemeGuid = 'e03c2dc5-fac9-4f5d-9948-0a2fb9009d67' # randomly created with New-Guid
$schemeName = 'Always on'
$schemeDescr = 'Custom power scheme to keep the system awake indefinitely.'
# Helper function that ensures that the most recent powercfg.exe call succeeded.
function assert-ok if ($LASTEXITCODE -ne 0) throw
# Determine the currently active power scheme, so it can be restored at the end.
$prevGuid = (powercfg -getactivescheme) -replace '^.+([-0-9a-f]36).+$', '$1'
assert-ok
# Temporarily activate a custom always-on power scheme; create it on demand.
try
# Try to change to the custom scheme.
powercfg -setactive $schemeGuid 2>$null
if ($LASTEXITCODE -ne 0) # Changing failed -> create the scheme on demand.
# Clone the 'High performance' scheme.
$null = powercfg -duplicatescheme SCHEME_MIN $schemeGuid
assert-ok
# Change its name and description.
$null = powercfg -changename $schemeGuid $schemeName $schemeDescr
# Activate it
$null = powercfg -setactive $schemeGuid
assert-ok
# Change all settings to be always on.
# Note:
# * Remove 'monitor-timeout-ac', 'monitor-timeout-dc' if it's OK
# for the *display* to go to sleep.
# * If you make changes here, you'll have to run powercfg -delete $schemeGuid
# or delete the 'Always on' scheme via the GUI for changes to take effect.
# * On an AC-only machine (desktop, server) the *-ac settings aren't needed.
$settings = 'monitor-timeout-ac', 'monitor-timeout-dc', 'disk-timeout-ac', 'disk-timeout-dc', 'standby-timeout-ac', 'standby-timeout-dc', 'hibernate-timeout-ac', 'hibernate-timeout-dc'
foreach ($setting in $settings)
powercfg -change $setting 0 # 0 == Never
assert-ok
# YOUR CODE GOES HERE.
# In this sample, wait for the user to press Enter before exiting.
# Before that, the 'Always on' power scheme should remain in
# effect, and the machine shouldn't go to sleep.
pause
finally # Executes even when the script is aborted with Ctrl-C.
# Reactivate the previously active power scheme.
powercfg -setactive $prevGuid
您可以从上面创建一个 wrapper 脚本，将要执行的脚本的路径传递给该脚本。
【讨论】：
【参考方案2】：要为powercfg.exe-based solution 提供基于.NET / Windows API 的替代方案：
注意：
该解决方案使用Add-Type 按需编译 C# 代码，这会在当前会话中首次调用代码时导致性能损失。
请务必在同一会话中调用::StayAwake($false)，以清除发出的电源请求。
在下方寻找评论# YOUR CODE GOES HERE。
此解决方案由MarkusEgle 改编自this C# answer。
Add-Type -ErrorAction Stop -Name PowerUtil -Namespace Windows -MemberDefinition @'
// Member variables.
static IntPtr _powerRequest;
static bool _mustResetDisplayRequestToo;
// P/Invoke function declarations.
[DllImport("kernel32.dll")]
static extern IntPtr PowerCreateRequest(ref POWER_REQUEST_CONTEXT Context);
[DllImport("kernel32.dll")]
static extern bool PowerSetRequest(IntPtr PowerRequestHandle, PowerRequestType RequestType);
[DllImport("kernel32.dll")]
static extern bool PowerClearRequest(IntPtr PowerRequestHandle, PowerRequestType RequestType);
[DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true, ExactSpelling = true)]
static extern int CloseHandle(IntPtr hObject);
// Availablity Request Enumerations and Constants
enum PowerRequestType
PowerRequestDisplayRequired = 0,
PowerRequestSystemRequired,
PowerRequestAwayModeRequired,
PowerRequestMaximum
const int POWER_REQUEST_CONTEXT_VERSION = 0;
const int POWER_REQUEST_CONTEXT_SIMPLE_STRING = 0x1;
// Availablity Request Structures
// Note: Windows defines the POWER_REQUEST_CONTEXT structure with an
// internal union of SimpleReasonString and Detailed information.
// To avoid runtime interop issues, this version of
// POWER_REQUEST_CONTEXT only supports SimpleReasonString.
// To use the detailed information,
// define the PowerCreateRequest function with the first
// parameter of type POWER_REQUEST_CONTEXT_DETAILED.
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
struct POWER_REQUEST_CONTEXT
public UInt32 Version;
public UInt32 Flags;
[MarshalAs(UnmanagedType.LPWStr)]
public string SimpleReasonString;
/// <summary>
/// Prevents the system from going to sleep, by default including the display.
/// </summary>
/// <param name="enable">
/// True to turn on, False to turn off. Passing True must be paired with a later call passing False.
/// If you pass True repeatedly, subsequent invocations take no actions and ignore the parameters.
/// If you pass False, the remaining paramters are ignored.
// If you pass False without having passed True earlier, no action is performed.
//// </param>
/// <param name="includeDisplay">True to also keep the display awake; defaults to True.</param>
/// <param name="reasonString">
/// A string describing why the system is being kept awake; defaults to the current process' command line.
/// This will show in the output from `powercfg -requests` (requires elevation).
/// </param>
public static void StayAwake(bool enable, bool includeDisplay = true, string reasonString = null)
if (enable)
// Already enabled: quietly do nothing.
if (_powerRequest != IntPtr.Zero) return;
// Configure the reason string.
POWER_REQUEST_CONTEXT powerRequestContext;
powerRequestContext.Version = POWER_REQUEST_CONTEXT_VERSION;
powerRequestContext.Flags = POWER_REQUEST_CONTEXT_SIMPLE_STRING;
powerRequestContext.SimpleReasonString = reasonString ?? System.Environment.CommandLine; // The reason for making the power request.
// Create the request (returns a handle).
_powerRequest = PowerCreateRequest(ref powerRequestContext);
// Set the request(s).
PowerSetRequest(_powerRequest, PowerRequestType.PowerRequestSystemRequired);
if (includeDisplay) PowerSetRequest(_powerRequest, PowerRequestType.PowerRequestDisplayRequired);
_mustResetDisplayRequestToo = includeDisplay;
else
// Not previously enabled: quietly do nothing.
if (_powerRequest == IntPtr.Zero) return;
// Clear the request
PowerClearRequest(_powerRequest, PowerRequestType.PowerRequestSystemRequired);
if (_mustResetDisplayRequestToo) PowerClearRequest(_powerRequest, PowerRequestType.PowerRequestDisplayRequired);
CloseHandle(_powerRequest);
_powerRequest = IntPtr.Zero;
// Overload that allows passing a reason string while defaulting to keeping the display awake too.
public static void StayAwake(bool enable, string reasonString)
StayAwake(enable, false, reasonString);
'@
try
# Create power request(s) that keep the system awake.
# Pass $false as the 2nd argument to allow the display to go to sleep.
# The reason string is visible when you run `powercfg.exe -requests` to show current requests
# (requires elevation).
# Defaults: keep the display awake too, use the current process' command line as the reason string.
[Windows.PowerUtil]::StayAwake($true, $true, "Running long-running script $PSCommandPath.")
# YOUR CODE GOES HERE.
# In this sample, wait for the user to press Enter before exiting.
# Before that, the system should stay awake indefinitely.
pause
finally # This ensures that the previous scheme is restored even when the script is aborted with Ctrl-C.
# Clear the power requests.
[Windows.PowerUtil]::StayAwake($false)
【讨论】：
【参考方案3】：我使用的简单单线：
Powercfg /x -standby-timeout-ac 0
【讨论】：
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