Solved On Screen Volume Level Indicator Has Disappeared On Medion Vista Laptop?

Following updates the on screen volume level indicator has disappeared
on my Medion laptop.
The sound system is Realtek.
Any help would be appreciated.

Welcome
Should be easy to solve
http://www.vistax64.com/tutorials/106787-notification-area-system-icons.html

Thanks.
I looked at that but it didn't really tell me anything.
I am a bit of a novice.
Hope, as you say, that it should be easy to solve.

Basically all the tutorial says is that you go to the notificatioan area and tick off the icons (volume icon) that you want to show.
Go to search by the start button and type notification to get started.

The volume icon is ticked which really makes it confusing.
The only box not ticked is power, but clock, volume and network
are all ticked.

To the right of the icon, there is a drop down menu, which tells you when the icon should show. Set that to your preference.

http://www.vistax64.com/tutorials/76913-notification-icons-customize.html

I have set that to show, but it has made no difference.
A system restore would probably do the trick, but I
would lose all the Windows updates as well.
Incidentally, ticking and unticking the volume icon in notification
area only affects the sound icon in the taskbar, not the volume indicator.

The volume indicator is usually a function of the keyboard driver, and appears when you press one of the volume keys (or the mute key) on the keyboard. As you correctly mention, the notification option only affects the icon in the system tray and not the volume level indicator. Sometimes, an seemingly unrelated update can cause this to disappear, even though the keyboard is still able to control the sound level as before. Bizarrely, it can sometimes reappear without having to do anything. Another thing that can happen is that the indicator can become out of sync with the volume status (i.e. show as muted when the sound itself isn't).

I've had this happen myself, but why I am not sure.

Many thanks.
It is reassuring to know that I am not the only
one it has happened to, and to know that it can sometimes reappear.

Just wondering, if I was to download a fresh copy
of Realtek 97 - if it's free - would that solve the problem?
The original shipped with the system.

Have had to resort to System Restore and the problem is now solved. Sincere thanks to all who replied.