Windows 10: Alarm clock Alarm won't go on?

I have a desktop Windows 10, When I lock my Windows the Alarm won't go on. I did a test if my alarm works or not, and I found out that when the desktop is turned on than it will go on. Please help.

:)

 

alarm clock

Hi Diane,

We would like to verify some information regarding your concern. Are you trying to turn off an existing alarm? If so, here are the steps on how to turn off alarm clock in Windows 10:

1. Open Start.

2. Type “alarms” into the search box.

3. Select “Alarms & Clock” from the list of results.





4. On the Alarms & Clock window, click the toggle on the right side of an existing alarm.





We'll always be here if you need further assistance.

 

Error in Alarm&Clock

Hi,

After checking the screenshot provided and since you are encountering this kind of issue in your alarm clock. Please answer the question:

• Are you using a Windows app alarm clock or a third party alarm clock?

We'll look forward to your response.

 

Hidden / Phantom Alarm in Alarms & Clock App

Right now I've deleted all alarms in my Alarms & Clock app, but alarms still go off during the times of the deleted alarms (which were recurring alarms). Before I deleted the recurring alarms, I was seeing each alarm go off twice (one after another) - they
must've been different alarms because one alarm was with the sound I selected while the other was the default sound.

Trying to remember what happened before all of this started...

1) I updated to 10586.29, everything was fine...

2) Then I went into the Cortana app and Cortana suggested adding a new (one time) alarm for an early morning appointment I had the next day (which my existing / recurring alarm would not be early enough for).

3) While trying to add the one time alarm I got an error (don't remember the error text).

4) Went back into the Cortana app to retry adding the one time alarm and was successful.

5) *I think* (memory is fuzzy) after this point when I went back into the Alarms & Clock app I only saw the one time alarm that I had just set, and the 3 pre-existing / recurring alarms I had were not listed.

6) Thinking the pre-existing alarms were really deleted, I went ahead and re-added them.

After that I noticed that I was getting duplicate alarms, and now that I've deleted all the alarms listed in the Alarms & Clock App, I'm getting "phantom" or "hidden" alarms that continually go off and I don't know how to turn them off / delete them (or
better yet, have them show up in the Alarms & Clock App so I can manage them there).

Info:

Lumia 950

OS build: 10.0.10586.29