Restart your PC and check if the slider is still missing.You have five quick-fix solutions to attempt. We will look at both the quick fix solutions available and the available solutions. Corrupted/missing files after Windows 10 upgradeĪvailable Solutions for Windows 10 Slider Bar Missing Issueīelow are the solutions to solving this particular issue.Here are three of the most common reasons to read and understand. Many reasons can make the Windows 10 brightness slider miss. Why will the Brightness Slider bar Miss all over Sudden? On the contrary, if your PC does not have these additions/extras or if the keyboard is not working, then you need a comprehensive guide that assists you to troubleshoot this issue.įortunately, in this guide, you will learn why the brightness slider at times is unavailable, and all the available ways to resolve it. Nonetheless, if you have a PC with brightness controls or adjustment buttons on the keyboard, you need not worry. Some of these reasons might be because of technical complications, while others because of non-technical issues –like a critical battery level. This is because of several different reasons. Sometimes, the Windows 10 brightness slider will miss from its original position(notification bar).