How to fix
Phone Link app error 37
on Windows

Hi, I have a rather strange issue with the Phone Link app. It works fine when it comes to messages and calls, but it simply won't share apps, and I receive error 37 in Windows. Any ideas on this?

Phone Link is an app developed by Microsoft that allows users to link their Android or iOS devices with their Windows 10 PC. With this app, users can access their phone's notifications, messages, and photos directly on their PC, making it easier to stay connected and productive.

Once the app is installed on both the phone and the PC, users can connect the two devices via Bluetooth or Wi-Fi. This enables the phone to sync with the PC, allowing the user to access and interact with their phone's content from the PC's desktop.

Some of the key features of the Phone Link app include the ability to view and respond to text messages directly from the PC, access recent photos and share them with ease, and receive and respond to notifications from various apps on the phone. Unfortunately, some users reported receiving Phone Link error 37, which prevents them from sharing apps.

Error 37 is a common issue that users of the Phone Link app on Windows may encounter. This error occurs when the app fails to establish a connection between the PC and the phone. This can be caused by a variety of reasons, including network connectivity issues, outdated drivers, or software conflicts.

Below we provide several methods that should help you fix Phone Link error 37 in Windows. The guide consists of troubleshooting steps on both phones and computers. If you want to find a solution faster, we recommend employing an automatic PC repair tool [d1].

1. Disable battery saver

Battery Saver could prevent Phone Link from connecting to your phone properly.

• In Windows search, type Control Panel and hit Enter.
• Here, go to Hardware and Sound > Power options.
• Here, you will see the listed plans.
• Change the plan from Power saver to Balanced or High performance.

2. Ensure both phone and PC are connected to the same network

In order for Phone Link to work, you need to connect your Phone and PC to the same network. Thus, make sure you are not using 4G/5G and instead connect to your local WiFi. Also, if you have several network connections, ensure the correct one is chosen on your PC as well - simply click on the Internet Access button on your taskbar to check.

3. Run network troubleshooter

Ensure your network connection is working properly:

• Right-click on Start and pick Settings.
• Go to Network & Internet section.
• On the right side, find the Advanced network settings section.
• Click Network troubleshooter and wait.
• Apply the suggested fixes.

4. Disable third-party antivirus and firewall

Antivirus or firewall can block connections to your phone and vice versa. You can temporarily disable third-party security software and see if that helps you to get rid of the Phone Link app error 37.

5. Disable battery optimization for Phone Link on your phone

Note that Android devices could be a bit different, depending on the OS version and phone model, so use these steps as guidance.

• Open Settings and select Apps/Apps and notifications.
• Scroll down and locate Link to Windows and select it.
• Here, pick Advanced.
• Tap on the Battery option and then select Battery optimization.
• Ensure Battery optimization is off.

Tip: also, ensure that your phone is not using Airplane Mode.