Here is a concise summary of the text:
**10 Keyboard Shortcuts You Might Not Know**
1. **Magnifying Glass**: Win + + to zoom in/out (adjust with +/- keys)
2. **High Contrast Mode**: Shift + Print Screen (or via Ease of Access in Win 8/10)
3. **Screen Rotation**: Ctrl + Alt + Arrow keys (may not work on all computers)
4. **Lock Computer**: Win + L (preserves work, locks user profile)
5. **Function Keys**: F1-F12 have various functions (e.g., help, editing, finding files, refreshing pages)
6. **Screen Capture**: Print Screen (saves to clipboard) or Alt + Print Screen (captures active window)
7. **Minimize All Windows**: Win + M
8. **Taskbar Navigation** (Win 7+): Win + T to select and launch taskbar items
9. **Show Sidebar** (Win 8): Win + C (note: activates Cortana in Win 10 with supported languages)
10. **Note**: You can't create a folder named "CON" in Windows due to its legacy as a command for input/output devices.
Here are the key facts extracted from the text, numbered and in short sentences, excluding opinions:
**Keyboard Shortcuts & Computer Functions**
1. **Magnifying Glass**: Windows key + **+** sign opens the magnifying glass application.
2. **High Contrast Mode**: Shift + Print Screen key toggles high contrast mode on/off (Windows 8/10).
3. **Screen Rotation**: Ctrl + Alt + directional arrow rotates the screen in the indicated direction.
4. **Lock Computer**: Windows key + **L** locks the computer, preserving work.
5. **Function Keys**:
* F1: Activates the help system of the running application.
* F2: Used for editing.
* F3: Finds files and folders.
* F4: Closes the current window.
* F5: Refreshes the browser page.
* F6: Highlights the address bar.
* F10: Starts/closes menus in some programs.
* F11: Often used to activate full-screen mode.
6. **Screen Capture**:
* Print Screen key captures the entire screen, saving to the clipboard.
* Alt + Print Screen key captures the active window.
7. **Minimize All Windows**: Windows key + **M** minimizes all open windows.
8. **Taskbar Navigation (Windows 7+)**: Windows key + **T** selects the first taskbar option; repeat to select the next.
9. **Show Sidebar (Windows 8)**: Windows key + **C** displays the sidebar (or activates Cortana in Windows 10, if supported).
**System Limitations**
10. **Folder Naming Restriction**: In Windows, a folder cannot be named "CON" due to its historical use as a command for input/output devices.