Windows 10/11: Press Windows + G to open the Game Bar, then select Record (or press Windows + Alt + R)
Windows 10/11: Press Windows + Shift + S to capture a screen region, then use the screen recording option if available in the capture toolbar
Windows 10/11: Use Xbox Game Bar settings to enable/confirm capture controls (Settings > Gaming > Xbox Game Bar)
Windows 10/11: Open the Start menu and search for “Xbox Game Bar” to confirm it’s installed and enabled
Windows 10/11: Use PowerPoint: Insert > Screen Recording, then select the area and Record
Windows 10/11: Use Microsoft Clipchamp: Create a new video > Record screen, then start recording
macOS: Press Command + Shift + 5, choose Record Entire Screen or Record Selected Portion, then click Record
macOS: Use QuickTime Player: File > New Screen Recording, then click the Record button
ChromeOS: Use the screenshot tool (Ctrl + Shift + Show windows), then choose Record screen and click Record
Linux (GNOME): Press Ctrl + Alt + Shift + R to start/stop recording (if supported), or use the screenshot/record tool from the system menu