Windows 10: Task bar disappeared after Windows 10 update

Not only the task bar, but the main screen is totally blank. Also seems some items are changed or missing, such as every time I try to bring up a web browser it keeps asking me which one to use like there is no default anymore.

:)

 

Task to auto update windows defender definitions disappears

My mom has a new laptop with windows 8.1, we always set the windows updates to manual.
On our other windows 8.1 computers I have created a task for auto updating windows defender definitions, which works fine for us.

This is how I created this task:

"Click on "Create Task", name it what you like (mine is Daily Signature Update), set the trigger as the time you want it to run every day.

For Action browse to Program Files\Windows Defender\MpCmdRun.exe and select it. In "Add arguments" add -SignatureUpdate -MMPC"

But somehow this task disappears once it has run on my mom's laptop.
I'm logged in as admin and then I also tried it with running the task scheduler as admin, the task just disappears every day for some reason, while it works fine on our other windows 8.1 computers.

Anyone an idea why this task disappears every time?

Thanks.

 

Windows 10 Defender - How to make it default to task bar?

Using Windows 10 and currently I am using Defender for anti virus. For whatever reason Windows Defender does not show up in the task bar unless I search for the program or right click and scan a file/folder. Is there a way to force Defender to show up in the task bar at start up?

 

I recently upgraded to Windows 10. The task bar on the bottom of the screen suddenly disappeared.

<Original title: Task Bar Disappeared>

I recently upgraded to Windows 10. The task bar on the bottom of the screen suddenly disappeared. I have tried re-booting without success. Any suggestions on how to restore it?