Tired of searching through Settings when you need to check a driver or find a folder? The Windows Run dialog is worth a look: press Windows + R, enter a command, and press Enter.
Fix #1: Check your Windows version with winver
- Press
Windows + Rto open Run. - Type
winver. - Press
Enter. The About Windows window should show your version and OS build.
Windows 10 note: Windows 10 version 22H2 is out of support. These commands generally work there, but Windows 10 PCs no longer receive security updates or Microsoft technical support unless they’re enrolled in Extended Security Updates (ESU); some LTSC editions follow separate support dates. Move to a supported Windows 11 release if your PC can run it.
Fix #2: Open Calculator with calc
- Press
Windows + R. - Type
calc. - Press
Enter. Calculator should open.
Fix #3: Open Notepad with notepad
Need somewhere to paste an error message before restarting? Notepad opens without searching the Start menu.
- Press
Windows + R. - Type
notepad. - Press
Enter. A blank Notepad window should appear.
Fix #4: Open your user folder with %UserProfile%
Your user folder holds Documents, Downloads, Pictures, and other personal folders.
- Press
Windows + R. - Type
%UserProfile%. - Press
Enter. File Explorer should open your user folder.
Fix #5: Open the C drive with C:\
- Press
Windows + R. - Type
C:\. - Press
Enter. File Explorer should show the root of the C drive.

Fix #6: Find installed apps with ms-settings:appsfeatures
This opens the Installed apps page, where you can find or uninstall a program.
- Press
Windows + R. - Type
ms-settings:appsfeatures. - Press
Enter. Settings should open to Installed apps.
For the legacy Programs and Features window, use appwiz.cpl instead. The Settings page is the better starting point for an ordinary uninstall.
Fix #7: Inspect hardware with devmgmt.msc
If a USB mouse or another device has stopped working, Device Manager shows whether Windows reports a problem with it.
- Press
Windows + R. - Type
devmgmt.msc. - Press
Enter. Device Manager should list your hardware by category.
Expand the relevant category and look for a warning icon beside the device.
Fix #8: Check what is slowing your PC with resmon
Resource Monitor shows which processes are using your CPU, memory, disk, and network. It’s a clever shortcut when Task Manager doesn’t show enough detail.
- Press
Windows + R. - Type
resmon. - Press
Enter. Resource Monitor should open with Overview, CPU, Memory, Disk, and Network tabs.
Fix #9: Adjust mouse settings with main.cpl
- Press
Windows + R. - Type
main.cpl. - Press
Enter. Mouse Properties should open.
Use its tabs to change double-click speed, pointers, and wheel behavior. For other mouse options, open Settings > Bluetooth & devices > Mouse.
Fix #10: Check network adapters with ncpa.cpl
Use this when your Ethernet connection disappears or you need to inspect a Wi-Fi adapter. It won’t change any settings on your Wi-Fi router.
- Press
Windows + R. - Type
ncpa.cpl. - Press
Enter. Network Connections should show your installed adapters.
Fix #11: Open Windows Update with ms-settings:windowsupdate
- Press
Windows + R. - Type
ms-settings:windowsupdate. - Press
Enter. Settings should open to Windows Update.
Select Check for updates if you’re troubleshooting a missing fix or driver.
Fix #12: Open Windows Features with optionalfeatures
The Windows Features dialog controls components such as Hyper-V where your edition supports them.
- Press
Windows + R. - Type
optionalfeatures. - Press
Enter. The Windows Features dialog should appear.
For the Settings page called Optional features, use ms-settings:optionalfeatures. The two commands open different interfaces.
Fix #13: Inspect services with services.msc
A service is a background Windows process. Services lets you check whether one is running when a troubleshooting step names it.
- Press
Windows + R. - Type
services.msc. - Press
Enter. The Services window should show service names, status, and startup type.
I’d skip changing startup types unless you know which service you’re fixing. Disabling the wrong one can break a Windows feature or app.
Fix #14: Inspect drives with diskmgmt.msc
Disk Management is useful when an external drive doesn’t appear in File Explorer.
- Press
Windows + R. - Type
diskmgmt.msc. - Press
Enter. Disk Management should show your disks and volumes.
Check whether the drive appears and has a drive letter. Don’t format or delete a volume to make it show up; either action can erase data.
Fix #15: Schedule a shutdown with shutdown /s /t 600
This command schedules a shutdown in 600 seconds, or 10 minutes. Save your work first.
- Press
Windows + R. - Type
shutdown /s /t 600. - Press
Enter. Windows should display a shutdown notification.
Changed your mind? Open Run again, enter shutdown /a, and press Enter to cancel the scheduled shutdown.
If a command doesn’t open
Check the spelling first. If Windows + R does nothing, right-click Start and select Run, or search for Run from Start. A tool may also be unavailable in your Windows edition or require administrator permission to make changes.
The command to remember
For everyday hardware troubleshooting, devmgmt.msc is the one I’d bookmark. If several built-in tools refuse to open, check your Windows installation or account restrictions before changing drivers or services.