两个月前，我买了一台新的联想 C940，配有 12 GB RAM 和 Windows 10。购买后不久，我开始时不时遇到键盘延迟问题。
没有任何明显的原因，输入延迟了大约 5-10 秒，新字母仅相隔大约 1 秒出现（比我输入的速度慢）。我还遇到这样的问题：当我输入某些内容时，由于延迟，字符尚未显示在屏幕上，并且我切换到其他程序或应用程序的其他部分时，剩余的字符将打印在光标的新位置，而不是我输入的位置。
我已经尝试过故障排除步骤：
- 删除键盘驱动程序并重新启动计算机
- 以及下面显示的 DISM 命令
- 当键盘延迟时，我不会使用太多程序，以免计算机超载
- 此问题在 Windows 10 的不同版本中也存在（包括三月更新后以及切换到快速通道后）
Microsoft Windows [Version 10.0.19592.1001]
(c) 2020 Microsoft Corporation. All rights reserved.
C:\WINDOWS\system32>DISM.exe /Online /Cleanup-image /Restorehealth
Deployment Image Servicing and Management tool
Version: 10.0.19592.1001
Image Version: 10.0.19592.1001
[==========================100.0%==========================] The restore operation completed successfully.
The operation completed successfully.
C:\WINDOWS\system32>sfc /scannow
Beginning system scan. This process will take some time.
Beginning verification phase of system scan.
Verification 100% complete.
Windows Resource Protection did not find any integrity violations.
我还以管理员权限在命令提示符中运行以下命令：
Microsoft Windows [Version 10.0.19592.1001]
(c) 2020 Microsoft Corporation. All rights reserved.
C:\WINDOWS\system32>DISM /Online /Cleanup-Image /ScanHealth
Deployment Image Servicing and Management tool
Version: 10.0.19592.1001
Image Version: 10.0.19592.1001
[==========================100.0%==========================] No component store corruption detected.
The operation completed successfully.
C:\WINDOWS\system32>DISM /Online /Cleanup-Image /CheckHealth
Deployment Image Servicing and Management tool
Version: 10.0.19592.1001
Image Version: 10.0.19592.1001
No component store corruption detected.
The operation completed successfully.
C:\WINDOWS\system32>DISM /Online /Cleanup-Image /RestoreHealth
Deployment Image Servicing and Management tool
Version: 10.0.19592.1001
Image Version: 10.0.19592.1001
[==========================100.0%==========================] The restore operation completed successfully.
The operation completed successfully.
C:\WINDOWS\system32>
每次我都会重新启动计算机，但几天后问题又出现了。
我还可以尝试哪些其他方法？提前感谢您的帮助！