一些计算机应用程序，尤其是游戏和数字设计工具，需要大量的计算机资源才能顺利运行。许多用户的 PC 可能无法处理此类处理器密集型应用程序，因此他们选择使用任务管理器(Task Manager)来提高程序的优先级。
优先级越高，Windows为程序保留的资源就越多。虽然不可取，但提高优先级是适用于大多数用户的临时解决方案。但是，在某些情况下，当您尝试在 Task Manager 中更改 Process Priority 时(change the Process Priority in Task Manager)，它会失败，并且您会收到Access denied的错误消息。
如果您在特定过程中遇到此问题，则问题源于相关程序，您无法解决（为了您的计算机的利益）。另一方面，如果您无法设置多个进程的优先级，请阅读本指南以了解如何修复问题并强制您的计算机让您更改进程优先级。
无法在Windows 10的(Windows 10)任务管理器(Task Manager)中设置进程优先级(Process Priority)
如果您的Windows系统不允许您使用任务管理器(Task Manager)更改程序的优先级，以下是解决问题的故障排除步骤。
- 禁用/启用用户访问控制(User Access Control)( UAC )。
- 获取相关权限。
- 将您的计算机启动到安全模式。
到第三步，您应该已经解决了挑战。如果您不确定如何应用上述修复，请继续阅读本指南，因为我会详细解释它们。
1]Disable/Enable User Access Control（UAC）
用户访问控制保护您的计算机系统免受您安装的应用程序可能造成的潜在损害。当您尝试安装有风险的程序或以有害方式修改系统时，它就会发挥作用。
这些设置可以应用于管理员(Administrator)帐户以及标准用户帐户(Standard User Accounts)。请注意，管理员(Administrator)和标准用户帐户(Standard User Accounts)可以访问相同的功能，但后者受权限限制。
如果您无法在Windows 10的任务管理器中设置进程优先级，则减少或增加 UAC 设置可以解决此问题。这是如何做到的。
Windows key + R组合打开“运行”(Run)对话框 ，然后输入 control nusrmgr.cpl。单击“ 确定(OK)”按钮打开“用户帐户(User Accounts)”窗口。
单击 更改用户帐户控制设置(Change User Account Control settings)链接，并在出现提示时接受以管理员身份运行它。
单击(Click)并将滑块一直向下拖动到 从不通知(Never notify)区域。滑块越低，当您的程序尝试安装软件或修改系统时， Windows通知您的越少。(Windows)
点击 OK按钮保存设置并关闭窗口。最后，重新启动您的 PC 并尝试在任务管理器(Task Manager)中设置进程的优先级，以查看您的计算机现在是否允许您执行此操作。
如果设置后仍无法在任务管理器(Task Manager)中设置进程优先级，请再次执行上述步骤。但是，不要向下拖动滑块，而是将其向“ 始终通知(Always notify)”区域提升。
一旦您能够进行更改，请记住将UAC设置恢复为默认值。
2]获取(Acquire)相关管理员权限
您需要拥有系统上的所有管理权限。如果您登录的用户帐户不是管理员，则您必须授予自己权限才能设置进程优先级 - 或请管理员为您执行此操作。
- 按 CTRL + ALT + DELETE 组合键，然后单击 任务管理器(Task Manager)。
- 找到您希望更改其优先级的进程。右键单击它，然后单击Properties。
- 转到 顶部的安全选项卡，然后从下面的框中选择您的用户帐户名称。(Security)
- 点击 权限框下方 的编辑 按钮并标记(Edit )完全控制(Full Control)复选框。
- 单击 应用(Apply)和 确定(OK)以保存您的设置并关闭对话框。
最后重启你的机器。
3]将您的计算机启动(Boot)到安全模式(Mode)
与许多（如果不是全部）Windows问题一样，将计算机启动到安全模式(Mode)将解决此问题。Windows 安全模式(Windows Safe Mode)使您的机器能够仅使用重要的程序和驱动程序启动。
要将计算机启动到安全模式(boot your computer into Safe Mode)，首先 要关闭(off)它。重新打开计算机，在启动之前按 F8键。
这将打开“ 高级启动选项 (Advanced Boot Options )”屏幕。使用键盘上的方向键，导航到 安全模式(Safe Mode)并按 ENTER。
在安全模式下(Safe Mode)，打开任务管理器(Task Manager)并尝试再次设置进程优先级以查看它是否有效。
如果是这样，请重新启动计算机并重试。这次它应该可以完美地工作。
希望这三个修复中的一个能让您重回正轨，任务管理器(Task Manager)现在可以让您设置进程优先级。
Can't set Process Priority in Task Manager of Windows 10
Some сomputer apрlications, especiаlly gаmes and digital deѕign tools, demand mаssive computer resources to run smoothly. The PCs of many users may not be able to handle such processor-intensive applications, so they opt to increase the program’s priority leνel using Task Manager.
The higher the priority level, the more resources Windows reserves for the program. Although not advisable, increasing the priority level is a temporary solution that works for most users. However, in some cases, when you try to change the Process Priority in Task Manager, it fails, and you get the error that says Access denied.
If you experience this on a specific process, then it is an issue stems from the program in question, and you can’t fix that (for the good of your computer). On the other hand, if you can’t set the priority level of multiple processes, read this guide to the end to learn how to repair the issue and force your computer to let you change process priority levels.
Can’t set Process Priority in Task Manager of Windows 10
If your Windows system doesn’t let you change the priority levels of programs using Task Manager, below are the troubleshooting steps to fix the issue.
- Disable/Enable User Access Control (UAC).
- Acquire the relevant permissions.
- Boot your computer into Safe Mode.
By the third step, you should have resolved the challenge. If you’re not sure how to apply the fixes above, then continue reading this guide as I explain them in detail.
1] Disable/Enable User Access Control (UAC)
User Access Control protects your computer system from potential damage that can arise from applications you install. It comes into play when you attempt to install risky programs or modify your system in harmful ways.
The settings can be applied to Administrator accounts as well as Standard User Accounts. Note that Administrator and Standard User Accounts have access to the same functionality, but the latter is limited by permissions.
If you can’t set the Process Priority in Task Manager in Windows 10, reducing or increasing your UAC settings can fix the issue. Here’s how to do it.
Open the Run dialog box using the Windows key + R combination and enter control nusrmgr.cpl. Click on the OK button to open the User Accounts window.
Click on the Change User Account Control settings link and accept to run it as an administrator if prompted.
Click and drag the slider all the way down towards the Never notify area. The lower the slider, the less Windows notifies you when your programs try to install software or modify your system.
Hit the OK button to save the settings and close the window. Finally, restart your PC and try to set priority for processes in Task Manager to see if your computer now lets you do it.
If you are still unable to set process priority in Task Manager after this setting, follow the above steps again. However, instead of dragging the slider down, raise it toward the Always notify area.
Once you are able to make the change, remember to set the UAC settings back to its default value.
2] Acquire the relevant admin permissions
You need to have all the administrative privileges on your system. If the user account you are logged in isn’t an administrator, you have to give yourself permission to be able to set process priority – or ask an admin to do it for you.
- Press the CTRL + ALT + DELETE key combination and then click on Task Manager.
- Find the process for which you wish to change its priority. Right-click on it, and then hit Properties.
- Go to the Security tab at the top and select your user account name from the box below.
- Hit the Edit button below the permissions box and mark the Full Control checkbox.
- Click on Apply and OK to save your settings and close the dialog box.
Reboot your machine finally.
3] Boot your computer into Safe Mode
As with many (if not all) Windows problems, booting your computer into Safe Mode will fix this issue. The Windows Safe Mode enables your machine to start up with only the vital programs and drivers.
To boot your computer into Safe Mode, first power it off. Turn your computer back on, and before it boots up, press the F8 key.
This brings up the Advanced Boot Options screen. Using the directional keys on your keyboard, navigate to Safe Mode and hit ENTER.
In Safe Mode, open Task Manager and try to set the process priority again to see if it works.
If it does, then restart your computer and try it again. It should work flawlessly this time around.
Hopefully, one of these three fixes will get you right back on track, and Task Manager will now let you set the process priority levels.
