微软社区的解决方案:
1. Left click on windows icon and choose settings.
2. Click on display tab.
3. Change the size of text to 125% Then apply.
4. DO NOT LOG OUT YET. Choose sign out later!
5. Change the text size back to 100% and click apply.
6. Now sign out and sign back in.
Your volume icon will be back. =)
简单来操作就是 右键点击桌面,选择显示设置,上调或下调当前字体显示大小,选择注销(此时一般注销后图标会出现)。
或者稍后注销,再次改变当前字体显示大小,然后应用,注销,音量图标出现。