Windows operating system is a very well known OS in the world that is used worldwide by its user to complete their technical tasks. It is a very reliable operating system, but it also gives you many errors time to time that may make you very annoyed. Wlansvc.dll is missing error in Windows is also such types of error that you should rectify as soon as possible. The error is also known as Wlansvc.dll not found error. It comes to your computer due to the missing or corruption in the Wlansvc.dll file. It can affect your computer very deeply and lead to the loss of important data. So, it is very important to fix this problem very soon when you get it on your computer. You can use some manual fixes or install Advanced System Repair tool for automatic removal of this error.