Show desktop at 10:50 and 4:50

Solution
Have you tried checking your "Task Scheduler" to make sure there is nothing set up to run at those times? Go to "Control Panel" and click on "System and Maintenance". On the next screen click "Administrative Tools" and then finally click "Task Scheduler".

If nothing is found in there, you may want to check individual programs. Especially those that are set to auto update. Many antivirus programs do automatic updates. And if you are using Windows 10, you may want to check the Windows updates schedule also.

Another place to try is looking in the "Event Log". You can access this by going to "Start" and in the search field type in "Event Viewer". Click that and it will open "Event Viewer" and you can check there.

Should none of this...
Have you tried checking your "Task Scheduler" to make sure there is nothing set up to run at those times? Go to "Control Panel" and click on "System and Maintenance". On the next screen click "Administrative Tools" and then finally click "Task Scheduler".

If nothing is found in there, you may want to check individual programs. Especially those that are set to auto update. Many antivirus programs do automatic updates. And if you are using Windows 10, you may want to check the Windows updates schedule also.

Another place to try is looking in the "Event Log". You can access this by going to "Start" and in the search field type in "Event Viewer". Click that and it will open "Event Viewer" and you can check there.

Should none of this work, try starting up in "Safe Mode" or "Safe Mode" with networking, just a bit before one of the times this happens. Then see if it still occurs. If it doesn't occur in "Safe Mode" then I would revisit the above, or even look at programs that are running that were installed just before this issue started.

How to enter "Safe Mode" when booting the computer.

In Windows 8 and 10...

As your computer restarts, press F8 (possibly a few times) to enter "Safe Mode"

a. Press the "F4" key to Enable "Safe Mode".
(The computer will then start in "Safe Mode" with a minimal set of drivers and services.)

b. Press the "F5" key to Enable "Safe Mode" with Networking.
( Once "Safe Mode" with Networking starts, Windows is in Safe Mode, with additional network and services for accessing the Internet and other computers on your network.)

c. Press the "F6" key to Enable "Safe Mode" with Command Prompt.
(In "Safe Mode" with "Command Prompt" starts Windows in Safe Mode, with a Command Prompt window instead of the Windows interface. This option is mostly only used by IT professionals.)

Now sign in to the computer with your account name and password. (If you have one set.) When you are finished troubleshooting, you can exit "Safe Mode" restarting your computer.


In Windows 7/Vista/XP...

1. Immediately after turning on the computer, or restarting it (usually after you hear your computer beep), tap the F8 key, repeatedly, in 1 second intervals.

2. The computer will then display hardware information and run a memory test.

3. Next the "Advanced Boot Options" menu will appear.

4. In the "Advanced Boot Options" menu use the arrow keys to select "Safe Mode" or "Safe Mode with Networking" and press ENTER.
 
Solution