Applicable To

USB2-MICRO-250X, Digital Viewer Application

First, make sure that the microscope is set as the default device in the Settings menu. The Settings menu can be opened by clicking the grey gear-shaped icon in the upper-left corner of the Digital Viewer window.

In some cases, the devices in this menu have incorrect names. If you have the microscope selected in this menu and still see output from another webcam, try selecting each device in this menu until the preview window shows the microscope's output.

Windows Camera Mix-up Issues

Windows has a specific issue that can pop up with the microscope. The microscope uses the same USB Video Class drivers as most built-in and external cameras, which can cause Windows to mix up the listing.

If you set the microscope as the default device but see your other camera, it's likely that the listing was mixed up. To check if the listing was mixed up, try picking your other camera from the drop-down menu, and see if the microscope view shows up instead.

If the microscope view appears on your monitor after selecting your other camera, the listing was mixed up. There are steps that we could try to see if we can fix the listing. Please note that, as this is a Windows issue, it may recur with Windows Updates and other events. Let's give these steps a try to see if it clears up the listing:

1. Press the Windows Key, and type in Device Manager. You should see a listing for Device Manager in the search results. Click on it to open the Device Manager
   
   
   
    
2. Now that we have the Device Manager open, click on View, and choose Show Hidden Devices. We want to be sure to remove all entries related to the microscope
   
   
   
    
3. The microscope should appear in the Cameras section, but it may also appear in Imaging Devices. Click the little arrow on these sections to expand the listings, and find the "USB Microscope/Digital Microscope" Listing (In the picture below, mine is right next to the on-board camera Windows is confusing it with.) You may see other listings that appear faint, or grayed out, which is why we checked for Hidden Devices
   
   
    

Once you've found the listing(s), try these steps:

1. Right-click on the USB Microscope/Digital Microscope, and click to Uninstall Device for each listing you see
   
   
   
    
2. A message will pop up telling you that you're about to uninstall the device from your computer. Click Uninstall to proceed
   
   
   
    
3. Restart the computer after the microscope has been uninstalled. After you restart, open only the Digital Viewer software and check whether the microscope appears when you set it as the Default Device.

If the Issue Persists

If the microscope still displays output from another webcam or the listing mix-up reoccurs, please reach out to us directly at support@plugable.com.