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Open Start Menu and type " Sync your settings" and click on it on the search results. This is so cool and useful for Windows 11 users, but when you're trying to rename your PC, this might cause some errors like ours. If you use your PC with your Microsoft account, your Windows 11 settings are stored in it and synchronized with your other devices. Turn off Sync and Detach Your PC from Microsoft Account If there is an available update, you'll see them in this window after searching is done. Open Start Menu, and type " Check for updates". So, you need to check for updates and install them. Sometimes, the waiting updates might prevent renaming your PC. If you're not part of a network, you don't have to worry about it. There cannot be multiple devices in a network with the same name. Even if Windows 11 allows naming longer than 15 characters, compatibility issues may occur with some apps and services like NETBIOS.Ĭhoose a unique name. Keep your PC name to 15 characters or less. For example, 1234567 cannot be a PC name. Your PC name cannot consist of only numbers. So ĭon't use spaces and** lowercase letters** because some Windows versions may not support them.ĭon't use special characters like ~ # $ % ^ & ( ) = + | :, ‘ “. Because there might be old PCs with the previous versions of Windows, such as Windows 7, Vista, or XP in your network, your PC name needs to be compatible with them. When it joins a network, other network members have to identify or access your PC when needed. Your PC name is not only related to your PC.

Make sure you've logged in as an administrator. Turn off Sync and Detach Your PC from Microsoft Account.Then, follow the solution steps respectively. 😉īefore starting, please read the instructions below. Since I've faced the same error when creating the renaming guide for Windows 11, and I was able to fix it by following some methods, I believe I can show you the most effective solutions. In this tutorial, I'll explain how to fix the The PC name is invalid error when changing your PC Name or PC Host Name in Windows 11.