PC Slower Than It Used to Be?
A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 11Outdated Drivers Are Slowing You Down
One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchSome links on this page are affiliate links: if you buy through them we may earn a commission, at no extra cost to you.
Yes—Respondus LockDown Browser works on supported MacBooks running macOS 12 or newer. Get the installer from your instructor or school, because the download link is institution-specific; a copy found through a general search may not work with your course. Install it and complete a practice quiz before exam day.
Check that your MacBook is compatible
Respondus lists macOS 12 or newer as the current Mac requirement. To check your version, click the Apple menu in the top-left corner and choose About This Mac (or About This Mac > More Info, depending on macOS). If the Mac runs macOS 11 or earlier, upgrade if your model supports it. Older systems can trigger a digital-signature error with the current installer; changing browser or security settings is not a substitute for a supported macOS version. If the Mac cannot upgrade, ask your school about an approved alternative computer.
Respondus lists a minimum of 2 GB of RAM and approximately 400 MB of free disk space. For an exam using Respondus Monitor and a webcam, its guidance calls for at least 4 GB of available RAM. MacBook Air and MacBook Pro models can both be suitable; the macOS version and exam setup matter more than the product name. A webcam is only needed if your instructor requires webcam monitoring.
As of August 18, 2026, Respondus lists Mac version 2.1.5.06, released July 7, 2026. Versions may change, and existing installations may update automatically. Check Respondus’ computer requirements and Mac release notice for current details.
#1 Best Overall
- Increase Efficiency Up to 200% & Save Time：KEFEYA travel monitor for laptop screen extender supports you to open multiple windows at the same time, work, video conference, watch movies, or play games on different screens by not having to switch back and forth on a single laptop screen continuously, increase your efficient by up to 200 %. Perfect for people who work on the go，remote workers, watch a movie，IT professionals, Players, Stock traders, Programmers, game players.
- 1080P FHD IPS Panel for Great Image Quality: 14" full HD external laptop portable monitor extender is configured with 1920x1080 resolution, 16:9 aspect ration, 60Hz refresh rate, 300nit brightness, 72% NTSC color gamut for great image quality. Full HD technology brings you a more vibrant color, and can adjust brightness, contrast, backlight, and other parameters independently, providing you with a bright, vivid, and immersive viewing experience, and friendly eye protection, relieving fatigue.
- Plug & Play Without Driver ：Portable dual monitor for laptop comes with every cable needed(1* Type-C Cable, 1* USB-C to USB-A Cable, 1* HDMI Cable). You just need to connect the travel monitor for laptop via Type-C, HDMI and USB-A directly without any additional driver download. Please Note: when use the HDMI cable, please connect one extra USB-A to USB-C cable to the same screen extender to power supply.
- Multiple Display Mode & 180°Rotation：This second screen for laptop portable provides multiple display modes [Mirror mode/extension mode/landsape and portrait mode], attachable monitor for laptop can also 180° rotating allowing you to customize the viewing experience according to your preferences. And share your screen effortlessly with clients or colleagues, enhancing communication efficiency during collaborations.
- Wide Compatibility & Reliable Service：The monitor extension for laptop portable monitor supports a wide range of devices and operating systems, including Intel, AMD, ARM, Android, Windows, Mac,M1,M2, M3, Chrome, Linux, Type-C phones, PS4, Xbox, Switch, M1 Pro/Max, M2 Pro/Max, and other processors. Sincere and fast customer service at any time to serve you, quickly help you solve the problem.
Get your school’s download link first
Ask your instructor, check the course or quiz instructions in your learning-management system (LMS), or contact your school’s help desk. Respondus says the student download is specific to the institution. If the school provides the standard link format, it looks like this:
https://download.respondus.com/lockdown/download.php?id=xxxxxxxxxReplace xxxxxxxxx with the school’s actual nine-digit Institution ID. Do not use that placeholder literally or borrow another school’s link. If the app installs but will not connect to your course or quiz, an incorrect institution-specific copy is one possible cause. Start with the link in your school’s instructions, not a random search result. See Respondus’ installation directions and student help page.
Rank #2
- 【200% Productivity Increased】Turn your laptop into a double productivity workstation with this laptop screen extender, which supports extend, mirror, and portrait modes. It can effectively reduce constant tab switching and allow you to manage multiple tasks simultaneously. With this dual monitor extender, you can keep your main task on one display while handling online meetings,data analysis, watching movies, or referencing materials on the other, no need to switch back and forth. Easy and efficient to handle different multitasking needs. Build your workstation in seconds, stay focused, and boost productivity by up to 200%, especially for remote workers and frequent travelers.
- 【1.87lbs Ultra-Portable Design】Designed as an ultra-portable & ultra-thin, only 1.87lbs and 0.27“ thin, making this portable monitor for laptop ultra-light, ultra-portable, and more stable. It is much lighter than your laptops and the previous 14-inch laptop monitor extender. It's widely fit for all 14-inch to 17.3-inch laptops. The ultra-light and portable design allows you to easily take it with you and build your workstation as you want. Efficiency improves your airport, business trips, and travel productivity; it is an ideal choice for those who frequently travel, remote workers, students, and programmers.
- 【Effortless Setup, No Driver Required】Our portable laptop monitor features an effortless connection, no driver required, only need one second to set up. If your laptop has a full-function USB-C port, connect the screen and your laptop with the USB-C cables directly. If your laptop does not have full-function USB-C ports, you can easily connect the screen to your laptop using an HDMI and a USB-A cable. All the necessary cables are included in the package. Simple and seamless connection.
- 【1080P IPS Display & 226° Adjustable View】 Equipment 1080P High FHD IPS and 300 nits of brightness, with this extra screen for laptop, enjoy a clear, vivid, rich-color, realistic visual experience. The 0-226° adjustable angle design allows you to adjust the viewing angle freely according to your needs, preferred angle, lighting, and weather conditions. Enjoy a clear, vivid, and wide viewing, which not only offer eyes care but also provides a comfortable, efficient workstation anytime, anywhere.
- 【Wide Compatibility & Worry-free Support】The screen extender monitor portable and made with upgraded high-quality materials, featuring certifications for QC, FCC, CE, and RoHS. It is widely fit for 14-17.3" laptops, and seamlessly compatible with multiple devices, including Windows, macOS, ChromeOS, Linux, and Android systems. We offer a 1-year warranty, 30 days of free returns, and a 24-hour responsive support team. Contact us when you need—we'll provide timely, professional assistance to ensure a smooth, worry-free experience.
Make sure you are installing Respondus LockDown Browser, the student exam browser. Respondus 4 and Respondus LE are different products for creating tests; they are not substitutes for the student browser.
Download and install it on macOS
Before you begin, save your work and close unnecessary applications. You may need a Mac account with administrator privileges to install the software. If this is a school-managed Mac and you do not have those privileges, ask the school’s IT staff to install it rather than trying to bypass device controls.
Rank #3
- 【Ultra-thin & Ultra-light】This Triple laptop screen extender features a lightweight body—just 0.3 inches thin and 3.0 lbs, lighter than a standard coffee bottle. Compact and travel-ready, it’s the ideal laptop screen extender for remote work, business trips, students, and digital nomads who need extra screen space without added bulk.
- 【Triple-screen efficiency】Transform your setup into a powerful triple-screen workstation. This Triple laptop monitor extender supports extended, mirrored, and portrait display modes, letting you multitask across apps, dashboards, or creative tools without constant window switching. Perfect for traders, developers, designers, and remote workers seeking maximum productivity on the go.
- 【Crystal-clear FHD display】Enjoy sharp, vibrant visuals on the 14-inch IPS panel with 1920×1080 full HD resolution, 300-nit brightness, and 100% sRGB color accuracy. Anti-glare coating and eye-care technology reduce eye strain during long sessions, while the 178° wide viewing angle ensures clear visibility from any position—ideal for creators, gamers, and outdoor use.
- 【Upgraded stable & adjustable stand】The reinforced plastic stand offers multi-level height adjustment and smooth 180° horizontal rotation, fitting laptops from 13" to 17.3". Engineered for zero wobble, it delivers reliable stability for presentations, collaborative work, or ergonomic desk setups at home, in cafes, or on the road. The laptop extender features reinforced springs, non-slip pads, and a rear stand to securely hold laptops ranging from 13 to 17.3 inches.
- 【Plug and play without driver】No software or drivers needed! This portable dual monitor for laptop includes all essential cables (USB-C ×2, USB-C to USB-A, HDMI) for instant connectivity. Compatible with Windows, macOS, ChromeOS, Android, Linux, and gaming consoles. ⚠️ If you experience screen flickering or low brightness, connect a 5V/3A (or higher) power adapter directly to the monitor’s dedicated power port.
- Open Safari or another standard browser and visit the installation link supplied by your school.
- Download the Mac installer, then open your Downloads folder. The download may be a ZIP file with a name similar to
InstallLDBPackage64c-2-0-x-xx.zip; the exact name can vary. - If macOS has not already unpacked it, double-click the ZIP file. Open the extracted installer package, whose name may resemble
Install Respondus LockDown Browser xxxxxxxxx.pkg. - Double-click the
.pkgfile and follow the on-screen prompts. Enter an administrator username and password if macOS requests them, and accept the default installation options. - When setup finishes, look in Finder > Applications for Respondus LockDown Browser.
The Mac version is a local application. Chrome does not need to be installed for LockDown Browser to work on a Mac. Respondus’ step-by-step installation guide covers the installer process.
Allow camera and microphone access if required
LockDown Browser restricts the testing environment. Respondus Monitor is a separate webcam-based proctoring feature that an instructor may enable for a particular exam. If Monitor is required, allow LockDown Browser to use the camera and microphone, then test both before the exam.
Rank #4
- Full HD Portable Monitor - MNN 15.6inch portable laptop monitor with 1920*1080 resolution, advanced IPS glossy screen support 178° full viewing angle, it renders accurate and bright color, draws you into the video or game with lifelike colors and amazing detail.It can effectively reduce blue light radiation damage, no flickering, eye-care, and make it easier to watch for a long time.A second monitor for working from home.
- Double Type-C Port -For Plug & Play, the MNN monitor provides 2 Full Feature Type-C ports. Only One USB Type-C Cable is required to connect to the power supply & display signal transmission. NOTE: Your device should support thunderbolt 3.0 or USB 3.1 Type C DP ALT-MODE.which supports multiple connect ways to your laptops, PC, Phones, Macbooks, PS5/PS4, Xbox, and Switch.
- Lightweight Ultra Slim for Travel - As a portable external monitor,MNN portable laptop monitor easily accommodate to every suitcase and backpack and stress-free when you are holding it for a long time. They are truly portable computer monitors for travelers, students, gamers,engineers, and everyone.
- Give consideration to work and games - through multiple display modes [Copy Mode/Extended Mode/Second Screen Mode/Portrait Mode], we can bring you a clear second screen in the meeting, and expand the screen anytime and anywhere to improve work efficiency and improve the quality of life. Adjusting to HDR mode can upgrade the image to a new level, providing you with brighter highlights,deeper and more realistic colors, more realistic images, and amazing viewing/gaming experience.
- Powerful Smart Cover - MNN portable external monitor can work in both landscape and portrait mode, can be used as a gaming monitor, screen extender for laptop or phone. Comes with a scratch-proof smart cover made of durable PU leather exterior, doubles as a stand, provides comprehensive protection for this portable computer monitor.
On newer macOS versions, open Apple menu > System Settings > Privacy & Security, then choose Camera and enable access for LockDown Browser. Repeat under Microphone. On older versions, the route may be Apple menu > System Preferences > Security & Privacy > Privacy. If macOS shows a lock, unlock the settings to make changes. Restart LockDown Browser if prompted or if the new permissions do not take effect. Respondus has more detail in its macOS camera and microphone permission guide.
Launch the exam the way your course requires
The correct launch method depends on your LMS and how the instructor configured the quiz. Often, you sign in to the LMS in a regular browser, open the course and quiz, and select a button such as Launch LockDown Browser. Approve the prompt to open the app if macOS asks.
Best Value
- 【Fewer Cables, Simplify Connections】Our laptop screen extender uses upgraded internals, minimizes cables and simplifies the connection process, making setup easier. Unlike traditional extenders with messy cables and compatibility issues, you only need 2 USB-C to USB-C cables (when your device supports full functionality) to connect effortlessly to your laptop. Say goodbye to compatibility worries, messy wires and complex setups, enjoy a clean desk, save space, quick setup of a triple-screen.
- 【Triple-Screen Boost for 300% Efficiency】Transform your workflow with the ZUMWALT P7 portable monitor for laptop that instantly expands your laptop into a triple-screen setup. Designed for multitasking. Expand your screen space to work on multiple applications simultaneously—Break free from tab switching. Enjoy up to 300% efficiency boost. This triple portable laptop monitor designed for on-the-go professionals who need more space without more clutter. Elevate your efficiency anywhere.
- 【Ultra-Slim Aluminum Shell, Stylish Durable Portable】The laptop screen extender monitor portable features a high-grade aluminum alloy shell that combines lightweight durability with sleek aesthetics. Incredibly lightweight at just 4 lbs (1.8 kg), its ultra-slim profile and included leather carry bag enhance convenience, making it perfect for on-the-go productivity. No top Baffle or clip, easy to remove and install. Designed to reduce stress on your laptop’s hinge.
- 【Widely Compatible】The portable dual screen extender is suitable for 13" to 17.3" laptops. It's compatible with mainstream systems such as Mac, Windows, Chrome, and Switch. Note: If your laptop has no full-featured USB-C port or M1/M2/M3 MacBooks, you need to use an additional H5-T cable. Connect via H5-T + HDMI + USB-A cable ( to external power, driver installation required). If you're not sure the compatibility or need H5 cable, please check with us before placing an order.
- 【15.6" FHD 1080P Larger Screen, Visual Excellence】Our laptop monitor extender featuring two 15.6" 1080P Ultra Slim FHD displays, provides a larger display area and a stylish appearance. Enjoy stunning visuals with 280 nits brightness and a 178° wide viewing angle. Perfect for triple-screen immersive visual in work or entertainment—Experience vibrant, true-to-life colors. This portable laptop monitor is designed for seamless collaboration and professionals multitasking on the go.
For some Canvas Classic and Blackboard Learn quizzes, Respondus instructs students to open Finder > Applications > Respondus LockDown Browser first, then sign in or continue to the LMS. Do not assume one workflow applies to every course: follow the quiz instructions or ask your instructor if they differ. Respondus’ student experience guide explains the institution-specific setup and common launch patterns.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Test the setup before exam day
Seeing the app in Applications does not prove that it will launch your course’s exam or that a required webcam will work. If your instructor or school offers a practice quiz or system check, use it ahead of time:
- Sign in to the LMS and open the practice quiz using the course’s normal instructions.
- Launch LockDown Browser and confirm that the quiz opens.
- Open its Help Center or run a system check if available.
- If the exam uses Respondus Monitor, complete the webcam and microphone checks as well.
- Report any failure to your instructor or school help desk before the exam deadline.
You usually install the browser once per device, but a software update or a course-specific requirement can mean you need to update or reinstall. Use the app’s update check or the school’s link if instructed.
What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
Fix common Mac installation and exam problems
| Problem | Likely cause | What to try |
|---|---|---|
| Digital-signature error | macOS is older than the current macOS 12 minimum. | Upgrade to macOS 12 or newer if the Mac supports it. Otherwise arrange another compatible computer; repeated downloads will not make an unsupported operating system compatible. See Respondus’ digital-signature guidance. |
| “The Installation Failed” | An old or incomplete installer, or insufficient administrator access. | Sign in to a Mac account with administrator privileges. Move the LockDown Browser app to the Trash, delete previously downloaded installer files, empty the Trash, and restart the Mac without reopening previous windows. Then download a fresh package from the school’s link and reinstall. See the Respondus reinstall steps. |
| Webcam is missing or the check spins | Permission is off, another app is using the camera, the browser needs an update, or the wrong camera source is selected. | Exit the check; close Zoom, FaceTime, Teams, recording tools, and camera utilities; confirm Camera permission; then use LockDown Browser’s information or globe icon and choose Check for Update. Restart the Mac and run the Help Center webcam check. Select the built-in or USB camera rather than a splitter or filter. If available, try an external USB webcam. See Respondus’ webcam troubleshooting guide and spinning-wheel guidance. |
| Microphone is not working | Microphone permission is off, the mic is muted or at low volume, or another app is using it. | Restart the Mac, close apps that may use the microphone, check its permission and volume, and run Help Center > Run Webcam Check. If needed, try a USB headset or webcam with a microphone. See Respondus’ microphone troubleshooting guide. |
| Quiz will not launch | The course has a different launch workflow, the LMS session expired, or the installed copy came from the wrong institution link. | Sign out of the LMS and back in, follow the course’s official launch instructions, and confirm the school’s installer link. Try the practice quiz. If the problem continues, contact the instructor or LMS help desk with the quiz name, Mac model, macOS version, and exact error. |
| Update repeatedly fails | The app may be outdated or was installed through an unsupported silent-install method. | Use the normal Check for Update function or reinstall from the school’s link. For update-check error A19, Respondus advises using its regular installation process. See its A19 guidance. |
If the exam is close, contact your instructor or school support promptly rather than spending hours repeating the same steps. A school testing center, library computer, or another institution-approved Mac or Windows computer may be the fastest fallback. Use an iPad only if the instructor confirms it is permitted and the LMS supports that exam; the iPad app is not universally interchangeable with the Mac version. Do not rely on a virtual machine as a workaround unless your institution explicitly confirms support.
Before you sit the exam
- Mac runs macOS 12 or newer.
- There is approximately 400 MB of free disk space and adequate memory (at least 4 GB available for a webcam-monitored exam).
- You have administrator access or the school has installed the app.
- You used your own institution’s download link.
- Camera and microphone permissions are enabled if the exam requires them.
- You completed the practice quiz and any webcam or microphone check.
- You know how your course launches the quiz and have a school support contact if something fails.
For school-specific help, start with the instructor or institution help desk. Respondus also maintains a student help hub with LMS-specific guides.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
