How to check office computers before an event

A computer that works at an employee's desk may fail when it is connected to the event projector, conference-room network, or shared microphone. Checking only one machine can also leave a backup computer with a dead key, silent speaker, or camera problem.

Test each computer in the room where it will be used, with the equipment and network it will rely on. TooLab's Test Everything runs hardware checks step by step and gives you a report. Then check the presentation and meeting software yourself, since a browser test cannot confirm that an app, account, or presentation file is ready.

Check each computer before the event

Open Test Everything on the computer you plan to use. Run the checks on that machine, not on a separate computer used to manage the event. Keep the report or write down any failed or skipped checks so you can compare devices.
Connect the equipment the computer will actually use: its charger, external monitor or projector, keyboard, mouse, headset, webcam, and any adapters. Follow the test steps and check the parts that matter for the event, including keys, mouse input, display, camera, microphone, speakers, and network.
Test the external display in the room. Confirm that the picture appears on the projector or monitor, that text is readable from the audience area, and that the computer is using the intended resolution and screen arrangement. If you will present from a laptop screen while showing slides on a projector, check that arrangement now.
Connect to the network you will use during the event and run the network checks. Open the event's video call or web-based presentation if possible, and check that it loads and stays connected. A test at another desk or on another Wi-Fi network does not confirm the connection in the event room.
Open the actual presentation, video, meeting app, and any shared documents. Test the links, audio, and playback you plan to use. If you have a backup computer, repeat the full check on it and confirm that it has the same essential files and access.

Give each computer a clear label, such as presenter, registration, or backup. That makes it easier to match a report to the right machine and to find the device that needs attention later.

What the results mean

The hardware checks pass

The tested parts responded to the browser at that time. This is a useful sign, but it does not prove that every event task will work. A keyboard test cannot confirm that presentation shortcuts are configured correctly, and a network check cannot confirm that your account can join a particular meeting. Continue with the real event app and files.

A check fails on one computer

Compare that machine with a computer that passed, using the same room, cable, accessory, and network where you can. If only one device fails, focus on its settings, port, or hardware. If several devices fail on the same projector or network, check the shared equipment or connection instead.

A device or check is missing

Make sure the item is connected and available to the browser. Camera and microphone checks require browser permission. Some battery information is shown only on devices whose browser reports a battery. A missing result does not always mean the hardware is broken, but it does mean you should test the actual event setup another way before relying on it.

Everything passes, but the event app still has a problem

The hardware can work while an app uses the wrong camera, microphone, or speaker. Check the device selections inside that app and make a test call or rehearsal. Also confirm that the required account can sign in and that the presentation opens from the account or location you will use during the event.

How to fix common problems

Reconnect the equipment. Unplug and reconnect the display, USB accessories, and audio gear. Try a different port or a known-good cable, and connect the charger if the computer will need to run for a long session.
Choose the correct display setup. On Windows 11, open Settings › System › Display and check the detected screens, arrangement, and resolution. On a Mac, open System Settings › Displays. Select the intended arrangement and confirm that the projector shows the desktop or presentation.
Select the right audio devices. On Windows 11, go to Settings › System › Sound and check the output and input devices. On a Mac, open System Settings › Sound and check both Output and Input. Then verify the same choices inside the meeting or presentation app, which may have separate audio settings.
Allow camera and microphone access. In the browser, use the site permission control beside the address bar and allow the devices. On Windows 11, check Settings › Privacy & security › Camera and Settings › Privacy & security › Microphone. On a Mac, check System Settings › Privacy & Security › Camera and System Settings › Privacy & Security › Microphone. Close another app that may be using the device, then test again.
Reconnect to the event network. Check that the computer is on the intended Wi-Fi network and that any required sign-in page has been completed. On Windows 11, open Settings › Network & internet › Wi-Fi. On a Mac, open System Settings › Wi-Fi. Retest from the event room, especially if the connection was unreliable.
Restart and retest. Save your work, restart the computer, and repeat the failed check with the event equipment connected. If the problem returns, record the symptom and arrange another computer or accessory rather than assuming it will resolve itself during the event.

When a computer or accessory may be faulty

If the same keyboard key, screen area, port, camera, or audio device fails after you reconnect it and test it with another computer, the fault may be in the accessory. If the problem stays with one computer across different accessories, its hardware or system setup may be at fault. Use a known-good replacement for the event, then arrange repair or warranty service afterward. Do not wait until guests arrive to find out whether a suspect device is usable.

What a browser check cannot confirm

Test Everything checks hardware through the browser. It cannot confirm that a desktop presentation app has the right file, that a meeting account is signed in, or that a video will play with sound in the app you plan to use. It also cannot guarantee that a network will remain reliable once many people connect. A short rehearsal with the real software, room equipment, and event network is the final check.