在Windows 10(Windows 10)中按 Alt-Tab 时没有任何反应吗？您的应用程序是否会在您通过 Tab 找到它们之前消失？或者一旦您选择了应用程序切换器，它是否无法打开程序？
许多原因可能会阻止Alt-Tab键盘快捷键在您的计算机上正常工作。技术故障、损坏的键盘驱动程序、冲突的系统设置等只是其中的一小部分。
下面，您将找到一些故障排除提示和方法来解决Alt-Tab在(Alt-Tab)Windows 10中不起作用的问题。随意(Feel)跳过任何不适用的内容。
1.重启Windows资源管理器
在Alt-Tab快捷方式无法正常工作的几乎所有情况下，您都可以通过重新启动Windows 资源管理器(Windows Explorer)进程来立即修复它。
1. 右键单击任务栏并选择任务管理器(Task Manager)。
2. 选择更多详细信息(More Details )以展开任务管理器。
3. 向下滚动进程(Processes )选项卡并找到Windows 资源管理器(Windows Explorer)。然后，右键单击它并选择Restart。
注意：(Note: )如果您打开了任何文件资源管理器(File Explorer)窗口，您可以在“应用程序(Apps )”部分下方找到Windows 资源管理器(Windows Explorer )进程。
4.等待(Wait)几秒钟，直到Windows 资源管理器(Windows Explorer)完成自行重新启动。您会看到任务栏和桌面图标同时消失。
5. 按Alt + Tab并查看组合键是否正常工作。
2.重启电脑
如果重新启动Windows 资源管理器(Windows Explorer)没有帮助，请尝试重新启动计算机。这应该会解决导致Alt-Tab键盘快捷键无法正常工作的任何小技术故障。
3.卸载/重新安装键盘设备(Keyboard Device)
您可以通过设备管理器(Device Manager)卸载并重新安装键盘来排除键盘驱动程序损坏的任何问题。
1. 右键单击开始(Start )按钮并选择设备管理器(Device Manager)。
2. 展开键盘(Keyboards)。
3. 右键单击 HID 键盘设备(HID Keyboard Device )并选择卸载驱动程序(Uninstall Driver)。
4. 选择卸载(Uninstall)以移除您的键盘。
注意：(Note: )如果您看到HID 键盘设备(HID Keyboard Device)的多个实例，请将它们全部删除。
5. 重新启动您的计算机。Windows 10 应该会自动检测您的键盘并重新安装其驱动程序。
4.安装支持软件
(Did)Alt-Tab的问题是否在使用新键盘后立即开始？查看键盘制造商的网站（Logitech、Dell、HP等）以获取任何特定的设备驱动程序或支持软件。安装它们，看看是否能解决问题。
5.检查另一台电脑上的键盘
如果您仍然遇到Alt-Tab无法在您的计算机上运行的问题，最好将您的键盘连接到另一台 PC 并测试这两个键以排除任何与硬件相关的问题。如果没有任何问题，请继续进行其余的修复。
6. 移除第三方Alt-Tab 切换器(Alt-Tab Switcher)
您的计算机上是否安装了第三方 Alt-Tab 程序？尽管改进了应用程序切换器的功能，但它也可以分解。尝试从您的计算机中删除它。
1. 右键单击开始(Start )菜单。
2. 选择应用程序和功能(Apps and Features)。
3. 找到第三方 Alt-Tab 程序并选择卸载(Uninstall)。
如果您无法删除 Alt-Tab 程序（例如，如果它是一个可移植的小程序），请打开它并将所有已修改的设置恢复为默认设置。
7.启用窥视
有时，如果您在Windows 10中禁用了(Windows 10)Peek ， Alt-Tab会拒绝切换窗口。当您将光标拖到屏幕的右下角时，该功能可让您“窥视”桌面。重新启用它，看看是否有帮助。
1. 按Windows + R，键入sysdm.cpl，然后按Enter。
2. 切换到高级(Advanced )选项卡并选择性能(Performance)下的设置(Settings)。
3. 选中启用 Peek(Enable Peek)旁边的框。
4. 选择应用(Apply)，然后选择确定(OK)，保存更改。
5. 打开开始(Start )菜单并选择设置(Settings)。
6. 选择个性化(Personalization)。
7. 切换到任务栏(Taskbar )侧选项卡。
8.打开使用Peek预览桌面(Use Peek to preview the desktop)旁边的开关。
9. 退出设置(Settings)窗格并重新启动计算机。
8. 更新显卡驱动
如果您的计算机上有任何过时的显卡驱动程序，Alt-Tab 应用程序切换器可能会停止工作。(Alt-Tab)尝试更新它们。
您可以访问Intel(Intel)、NVIDIA或AMD网站获取最新的显卡驱动程序。或者，您可以使用驱动程序更新程序(use a driver updater program)自动更新计算机上的视频驱动程序。
9. 更新 Windows 10
如果您仍然遇到问题，则必须更新Windows 10。这应该会处理任何阻止Alt-Tab键盘快捷键正常工作的已知错误。
1. 打开开始(Start )菜单并选择设置(Settings)。
2. 选择更新和安全(Update & Security)。
3. 在Windows Update侧选项卡下，选择检查更新(Check for Updates )并安装任何待处理的更新。
此外，选择查看可选更新(View optional updates )选项并安装任何硬件驱动程序更新。
10. 运行恶意软件扫描
恶意程序可以劫持您的计算机并阻止核心Windows 10功能正常工作。如果您还没有，请立即使用Windows 安全(Windows Security)中心对恶意软件执行快速扫描。
1. 打开开始(Start )菜单并选择设置(Settings)。
2. 选择更新和安全(Update & Security)。
3. 切换到Windows 安全(Windows Security)侧选项卡。
4. 选择病毒和威胁防护(Virus & threat protection)。
5. 选择快速扫描(Quick Scan)。
最好使用专门的恶意软件清除工具(dedicated malware removal tool)（例如Malwarebytes）来跟进，以确保您的计算机没有恶意软件。
11. 运行 SFC 扫描
通过提升的命令提示符(Command Prompt)控制台运行系统文件检查器(System File Checker)( SFC )以扫描和修复计算机上任何损坏的系统文件。
- 打开开始(Start )菜单，键入cmd，然后选择以管理员身份运行(Run as administrator)。
- 键入sfc /scannow。
- 按Enter启动扫描。
SFC扫描应该需要几分钟才能完成。之后重新启动计算机并检查Alt-Tab是否正常工作。
12. 切换到旧的 Alt-Tab 查看器
尝试切换到较旧的Alt-Tab应用切换器（显示应用图标而不是预览缩略图），看看是否有帮助。
1. 按Windows + R打开运行(Run)。
2.输入regedit并选择OK。
3.将以下路径复制并粘贴到注册表编辑器(Registry Editor)窗口顶部的地址栏中，然后按Enter：
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer
4. 右键单击 AltTabSettings注册表项并选择Modify。
5. 将值设置为1并选择OK。
6. 重新启动计算机并检查Alt-Tab是否正常工作。
假设您在Registry Editor中看不到(Registry Editor)AltTabSettings注册表项。打开(Open)提升的命令提示符(Command Prompt)控制台并运行以下命令：
REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer /v AltTabSettings /t REG_DWORD /d 1
这应该会自动创建一个具有正确值的AltTabSettings注册表项。您不必重新访问注册表编辑器(Registry Editor)，但必须重新启动计算机。
13.调整多任务设置
您是否在Windows 10(Windows 10)中使用多个桌面？如果是这样，除非您修改多任务(Multitasking)设置，否则Alt-Tab应用程序切换器不会跨桌面显示打开的应用程序。
1. 打开开始(Start )菜单并选择设置(Settings)。
2. 选择系统(System)。
3. 切换到多任务(Multitasking )侧选项卡。然后，打开Pressing Alt+Tab shows windows打开的窗口并选择All Desktops。
多任务(Multitasking)屏幕还包括一个附加设置，允许您在与Microsoft Edge一起使用时调整(Microsoft Edge)Alt-Tab应用切换器的行为。使用Alt+Tab部分下的菜单来确定您是否希望应用切换器将浏览器选项卡显示为单独的窗口。
Alt-Tab 你的方式
最有可能的是，您最终通过重新启动Windows 资源管理器(Windows Explorer)进程直接修复了Alt-Tab 。如果没有，其他修复应该有助于Alt-Tab不起作用。但是，如果您仍然有问题，您应该尝试将 Windows 10 重置为出厂设置(resetting Windows 10 to factory settings)。这应该可以解决任何损坏的设置或其他阻止您的计算机正常运行的问题。
Alt Tab Not Working? 13 Ways to Fix
Does nothing happen when you prеss Αlt-Tab in Windows 10? Do your applications disaрpear before you can Tab уour way through to them? Or does the aрp switcher fail to opеn a program once you’ve selected it?
Many reasons can stop the Alt-Tab keyboard shortcut from working correctly on your computer. Technical glitches, corrupt keyboard drivers, conflicting system settings, etc., are just a few.
Below, you will find several troubleshooting tips and methods to fix issues with Alt-Tab not working in Windows 10. Feel free to skip any that don’t apply.
1. Restart Windows Explorer
In almost all cases where the Alt-Tab shortcut fails to work, you can fix it immediately by restarting the Windows Explorer process.
1. Right-click the taskbar and select Task Manager.
2. Select More Details to expand the Task Manager.
3. Scroll down the Processes tab and locate Windows Explorer. Then, right-click it and select Restart.
Note: If you have any File Explorer windows open, you can find the Windows Explorer process listed underneath the Apps section.
4. Wait for a few seconds until Windows Explorer finishes restarting itself. You’ll see the taskbar and the desktop icons disappear in the meantime.
5. Press Alt+Tab and see if the key combination works without issues.
2. Reboot the Computer
If restarting Windows Explorer didn’t help, try rebooting your computer instead. That should take care of any minor technical glitches that cause the Alt-Tab keyboard shortcut to not work correctly.
3. Uninstall/Reinstall Keyboard Device
You can rule out any issues with a corrupt keyboard driver by uninstalling and reinstalling your keyboard via Device Manager.
1. Right-click the Start button and select Device Manager.
2. Expand Keyboards.
3. Right-click HID Keyboard Device and select Uninstall Driver.
4. Select Uninstall to remove your keyboard.
Note: If you see multiple instances of HID Keyboard Device, remove all of them.
5. Restart your computer. Windows 10 should automatically detect your keyboard and re-install its driver.
4. Install Support Software
Did the issue with Alt-Tab start right after using a new keyboard? Check the keyboard manufacturer’s website (Logitech, Dell, HP, etc.) for any specific device drivers or support software. Install them and see if that fixes the issue.
5. Check Keyboard on Another PC
If you continue to have issues with Alt-Tab not working on your computer, it’s best to connect your keyboard to another PC and test out both keys to rule out any hardware-related problems. If there’s nothing wrong, go ahead with the rest of the fixes.
6. Remove Third-Party Alt-Tab Switcher
Do you have a third-party Alt-Tab program installed on your computer? Despite improving the functionality of the app switcher, it can also break things down. Try removing it from your computer.
1. Right-click the Start menu.
2. Select Apps and Features.
3. Locate the third-party Alt-Tab program and select Uninstall.
If you can’t remove the Alt-Tab program (if it’s a portable applet, for example), open it and revert any modified settings to their defaults.
7. Enable Peek
Sometimes, Alt-Tab will refuse to switch windows if you’ve disabled Peek in Windows 10. It’s the functionality that allows you to “peek” into the desktop when you drag the cursor to the screen’s lower-right corner. Re-enable it and see if that helps.
1. Press Windows+R, type sysdm.cpl, and press Enter.
2. Switch to the Advanced tab and select Settings under Performance.
3. Check the box next to Enable Peek.
4. Select Apply, then OK, to save the changes.
5. Open the Start menu and select Settings.
6. Select Personalization.
7. Switch to the Taskbar side-tab.
8. Turn on the switch next to Use Peek to preview the desktop.
9. Exit the Settings pane and restart your computer.
8. Update Video Card Drivers
The Alt-Tab app switcher can stop working if you have any outdated video card drivers on your computer. Try updating them.
You can get the latest graphics card drivers by heading over to the Intel, NVIDIA, or AMD websites. Alternatively, you can use a driver updater program to update the video drivers on your computer automatically.
9. Update Windows 10
If you continue to have issues, you must update Windows 10. That should take care of any known bugs that prevent the Alt-Tab keyboard shortcut from working correctly.
1. Open the Start menu and select Settings.
2. Select Update & Security.
3. Under the Windows Update side-tab, select Check for Updates and install any pending updates.
Additionally, select the View optional updates option and install any hardware driver updates.
10. Run a Malware Scan
A malicious program can hijack your computer and stop core Windows 10 functionalities from working properly. If you haven’t already, use Windows Security to perform a quick scan for malware now.
1. Open the Start menu and select Settings.
2. Select Update & Security.
3. Switch to the Windows Security side-tab.
4. Select Virus & threat protection.
5. Select Quick Scan.
It’s best to follow that up with a dedicated malware removal tool such as Malwarebytes to make sure that your computer is free of malware.
11. Run SFC Scan
Run the System File Checker (SFC) via the elevated Command Prompt console to scan and fix any corrupted system files on your computer.
- Open the Start menu, type cmd, and select Run as administrator.
- Type sfc /scannow.
- Press Enter to initiate the scan.
The SFC scan should take several minutes to complete. Reboot your computer afterward and check if Alt-Tab works without issues.
12. Switch to Old Alt-Tab Viewer
Try switching to the older Alt-Tab app switcher (which displays app icons instead of preview thumbnails) and see if that helps.
1. Press Windows+R to open Run.
2. Type regedit and select OK.
3. Copy and paste the following path into the address bar to the top of the Registry Editor window and press Enter:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer
4. Right-click the AltTabSettings registry entry and select Modify.
5. Set the value as 1 and select OK.
6. Restart your computer and check if Alt-Tab works without issues.
Suppose you can’t see the AltTabSettings registry key within the Registry Editor. Open an elevated Command Prompt console and run the following command:
REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer /v AltTabSettings /t REG_DWORD /d 1
That should create an AltTabSettings registry key with the correct value automatically. You do not have to revisit the Registry Editor, but you must reboot your computer.
13. Tweak Multitasking Settings
Do you use multiple desktops in Windows 10? If so, the Alt-Tab app switcher will not reveal open apps across desktops unless you modify the Multitasking settings.
1. Open the Start menu and select Settings.
2. Select System.
3. Switch to the Multitasking side-tab. Then, open the menu under Pressing Alt+Tab shows windows that are open on and select All Desktops.
The Multitasking screen also includes an additional setting that allows you to tweak the Alt-Tab app switcher’s behavior when you use it with Microsoft Edge. Use the menu under the Alt+Tab section to determine if you want the app switcher to reveal browser tabs as separate windows or not.
Alt-Tab Your Way Through
Most likely, you ended up fixing Alt-Tab straight off the bat by restarting the Windows Explorer process. If not, the other fixes should’ve helped with Alt-Tab not working. If you still have issues, however, you should try resetting Windows 10 to factory settings. That should take care of any corrupt settings or other issues stopping your computer from functioning properly.
