If you try to access the Windows Features or the Turn Windows Features On or Off, through, the Control Panel or by simply typing optionalfeatures.exe in your start search box, the following dialogue box is expected to open. But if it is blank or empty, this post will help you troubleshoot the issue.
Turn Windows Features On or Off dialog box is blank
The Windows Features or the Turn Windows Features On or Off box of the Control panel, lets you turn off or turn on several features of the Windows operating system. Turning off a feature does not uninstall the feature – nor does it free up disk space. It only disable the feature.
But if this Turn Windows Features On or Off box appears completely blank, it is quite possible that the Component Store that contains information about Windows components has been corrupted.
To rectify this problem, you may try the following:
1] Run sfc /scannow or System File Checker to replace corrupted Windows system files.
2] Open an elevated command prompt, type the following and hit Enter:
reg delete HKLM\COMPONENTS /v StoreDirty
But this may or may not work for all.
Hope something helps!