Suddenly on some of our computers the Chrome browser Maximize button at top right of the browser is greyed out and does not work. We can still maximize/unmaximize by double-clicking the header, and the Minimize and Close buttons are present and function properly. It doesn't seem to matter what page we have open or what site we are on. I have tried uninstalling/reinstalling Chrome, flushing the cache, and disabling all of the extensions. This is a Windows 10 PC.
I have seen a very similar issue to this recently on a few users. I came across a thread where someone else mentioned the issue was with "Touch UI", We also found that this was the case, after disabling Touch UI and restarting chrome the buttons were no longer greyed-out. I suspect a recent google update has changed how this behaves.
To change Touch UI settings in Google Chrome:
- Open Google Chrome
chrome://flagsin the address bar
- Search for "Touch UI Layout"
- Ensure Touch UI is disabled or set to default
NOTE: You will need to restart google chrome for this to take affect.