What Is Scroll Lock on a Keyboard?
Last updated:
The Scroll Lock key is a toggle on your keyboard that changes how the arrow keys behave — when active, pressing the arrow keys scrolls the visible content on screen rather than moving your cursor. Introduced on the original IBM PC in 1981, the key was a crucial navigation tool in the era before mice and scroll wheels. Today, fewer than 5% of users ever deliberately activate Scroll Lock (Source: Microsoft 365 Blog), and most interactions are accidental — yet the key persists on nearly every full-size keyboard layout.
What Does Scroll Lock Do?
Scroll Lock is a modifier toggle — much like Caps Lock or Num Lock — that flips the meaning of the arrow keys in applications that support it. In its on state, the arrow keys no longer move the cursor or selection; instead, they scroll the entire visible window or document area while keeping your current position fixed.
The key was conceived at a time when large documents spanned many screens and mice did not exist. Programs like Lotus 1-2-3 and WordPerfect — dominant in the 1980s and early 1990s — relied on it for comfortable navigation through spreadsheets and long text files. Once scrollable mouse wheels and touchpads arrived in the mid-1990s, Scroll Lock became redundant for most workflows.
In modern computing, Scroll Lock still has a measurable effect in two places: Microsoft Excel (by far the most common use case) and certain terminal emulator or remote desktop applications that honour the IBM PC keyboard specification. Everywhere else — browsers, word processors, most productivity software — it does nothing at all.
What Does Scroll Lock Do in Excel?
Microsoft Excel is the only mainstream modern application where Scroll Lock has a clear, practical effect. When enabled:
- Arrow keys scroll the spreadsheet view up, down, left, and right without changing the active (selected) cell.
- Your highlighted cell stays exactly where it is, making it easy to compare distant rows or columns while keeping your reference cell visible.
- The Excel status bar at the bottom of the screen displays the word Scroll Lock whenever the feature is active.
This is particularly useful in large financial models or data sets where you need to read values across dozens of columns without losing track of your current row. If your arrow keys suddenly seem to be scrolling the sheet instead of moving between cells, Scroll Lock is almost certainly the culprit.
Where Is the Scroll Lock Key on Your Keyboard?
The location varies significantly by keyboard form factor:
| Keyboard Type | Scroll Lock Location | Label |
|---|---|---|
| Full-size (104/105 key) | Top-right cluster, between Print Screen and Pause/Break | Scroll Lock |
| Tenkeyless (TKL / 87 key) | Same top-right cluster (no numpad, but cluster preserved) | Scroll Lock |
| Laptop (standard) | Secondary Fn function, near Backspace or F-row | ScrLk / ScLk / Slk |
| 75% / 65% compact | Often absent; sometimes Fn-layer shortcut | Varies by brand |
| 60% / 40% compact | Almost always omitted | N/A |
| Mac (modern) | Not present; F14 on older Apple Extended keyboards | F14 (legacy) |
If you have a laptop and cannot find a physical Scroll Lock key, check whether your keyboard has a key labeled ScrLk printed in a secondary color — usually blue or orange — above or below another key. You will need to hold Fn and press that key simultaneously to activate it.
How to Turn Scroll Lock On and Off
Scroll Lock is a toggle — pressing it once turns it on, pressing it again turns it off. Here is how to control it across different setups:
Physical keyboard
Press the Scroll Lock key once. A status LED (labelled Scr Lk or ScrLk) on the keyboard will illuminate when it is active. On laptops, press Fn + ScrLk.
Windows 11 / 10 (on-screen keyboard)
If your keyboard has no physical Scroll Lock key, open the Windows on-screen keyboard:
- Press Windows + Ctrl + O to open the on-screen keyboard instantly.
- Alternatively: Settings > Accessibility > Keyboard > On-Screen Keyboard.
- Click the ScrLk button. It highlights in blue when active.
Dell laptops
Many Dell laptops use Fn + S as the Scroll Lock shortcut. Check your laptop's manual for the exact key combination if this does not work.
Mac (legacy)
On older Apple Extended keyboards, Shift + F14 toggles Scroll Lock. Most modern Macs do not support this function in any standard application.
Does Scroll Lock Do Anything Beyond Excel?
Outside of Excel, Scroll Lock has a handful of niche uses worth knowing about:
- Terminal emulators — Some terminal programs (such as PuTTY and older xterm configurations) use Scroll Lock to pause terminal output, similar to how Pause/Break was used to halt program execution.
- Remote desktop software — Older enterprise remote desktop clients may pass Scroll Lock to the remote machine, where it controls scroll behaviour in legacy applications.
- Lotus 1-2-3 and older spreadsheets — These legacy applications used Scroll Lock extensively for navigation. If you work with very old business software, the key may still have meaningful effects.
- Raspberry Pi / Linux consoles — The virtual console in Linux honours Scroll Lock to pause terminal output, making it a useful debugging tool in text-only environments.
For the overwhelming majority of modern workflows — web browsing, Microsoft Word, video editing, gaming — Scroll Lock has no effect whatsoever. You can safely ignore it unless you work extensively in Excel or encounter legacy software.
Why Your Keyboard Still Has a Scroll Lock Key
Keyboard layouts are governed by decades-old IBM PC standards, and manufacturers are reluctant to remove keys that some users — particularly enterprise and finance professionals — still rely on. Removing Scroll Lock could break compatibility with older software, terminal setups, and institutional IT environments that have not updated their hardware or software in years.
The trend, however, is clearly toward removal on compact form factors. Keyboards with 75%, 65%, and 60% layouts routinely omit Scroll Lock without complaints from the gaming and productivity audiences those keyboards target. High-end mechanical keyboards from brands like Keychron, HHKB, and Ducky often relegate it to an Fn-layer shortcut if they include it at all.
If you want to test your keyboard's key recognition — including whether Scroll Lock registers correctly — use the free Keyboard Tester tool. It shows every keypress in real time and can confirm whether your Scroll Lock key is being detected by the browser. You can also read about related keyboard features in our guide to N-Key Rollover and anti-ghosting.
Frequently Asked Questions
What is Scroll Lock on a keyboard?
Scroll Lock is a toggle key that changes how the arrow keys behave. When active, the arrow keys scroll the visible screen area instead of moving the cursor or active cell. It was introduced on the IBM PC in 1981 and is now mostly used in Microsoft Excel.
What does Scroll Lock do in Excel?
In Excel, enabling Scroll Lock causes the arrow keys to scroll the entire spreadsheet view instead of moving between individual cells. The status bar at the bottom of the Excel window displays 'Scroll Lock' when it is active — right-click the status bar if it is not visible.
Where is the Scroll Lock key on my keyboard?
On full-size keyboards, Scroll Lock is typically in the top-right cluster near Print Screen and Pause/Break. On laptops, it is often a secondary function of another key — look for 'ScrLk', 'ScLk', or 'Slk' in a secondary color. Many compact and 60% keyboards omit it entirely.
How do I turn off Scroll Lock in Windows 11?
If your keyboard has a Scroll Lock key, press it once to toggle it off. If not, open the on-screen keyboard via Settings > Accessibility > Keyboard, enable the On-Screen Keyboard, then click ScrLk. Shortcut: Windows + Ctrl + O opens the on-screen keyboard directly.
Does Scroll Lock do anything on a Mac?
Most modern Mac keyboards do not include a Scroll Lock key. The F14 key on older extended Mac keyboards performed this function. Pressing Shift + F14 toggles it on Apple Extended Keyboard II layouts. In practice, Scroll Lock has no effect in standard macOS applications.
Why does my keyboard have a Scroll Lock key if it does nothing?
Scroll Lock remains for backward compatibility. Some legacy enterprise software, terminal emulators, and remote desktop tools still rely on it. Manufacturers continue including it to avoid breaking compatibility with older software, even though the vast majority of users never use it.
Last updated: