Why does my laptop make bleeping sounds at sporadic intervals?

The sound itself is the one allocated to "Notification bar" - Windows Information Bar.wav

You can never say nothing is running in the background with Windows and installed Applications as there is always thousands of those. e.g. the Notification panel Icon clearly has something indicated in that video. There could be a host of other hidden notification icons.

The question is what of those thousands uses that particular beep sound as some kind of indicator.

As a start I would go to Settings > System > Notifications & actions.

Notifications, careful what you tick there.

There will be a long list lower down for Apps, some of which will have the option of Sounds.
Click on each one for sound options. Look for the greyed On: with 'Sounds' indicated.

e.g. there will be one for Google Chrome.
You may have about ~25 Apps listed there.

Helmut said:

The sound itself is the one allocated to "Notification bar" - Windows Information Bar.wav

When I first went through all the default Windows sounds using Windows' own 'Test' button (within 'Sounds') I discounted the Windows Information Bar.wav file as it sounded very different in tone/pitch from the OP's video.

I saw your post and played it again in Windows Media Player and it still sounded different.

So I opened the .WAV file in VLC instead... and it sounds identical to the OP's video.

Well spotted!

Hazel123 said:

On some laptops it can indicate a failing cmos battery I believe - having just had a failing cmos battery! Does your clock keep time ok?

The clock seems to freeze, but if Windows Explorer freezes the time in the taskbar will be frozen. Eventually windows explorer will crash and restart. Also sometimes time crashes.

You could try changing the cmos battery then. When mine was going it caused quite a few problems. It would lose time. I'd sync it again and it'd stop again. It stopped me opening web pages as I'd get error messages on web pages about the time being incorrect.

I can't replace my laptop battery as it's embedded internally inside the laptop. I can't open up my computer to replace it myself or get it done third party as that would void my laptop insurance.

Ah ok. What laptop is it and how old? It isn’t the laptop battery I meant - the cmos battery is a small coin battery - usually easy to replace - unless it’s a surface pro maybe!

I have often broken warranties by opening something up - but depends how much your laptop is worth- and if the cost of having it done professionally is excessive compared to the value of the laptop. Even with internal batteries, some laptops are fairly easy to do a small job like that. Just by taking a few screws out and taking the back off.

I’m guessing it’s worth quite a bit of it’s insured. If you Google the make snd model - dash - cmos battery replacement then it might tell you if it’s easy or not. Any links that come up on that topic by ifixit usually have good info with diagrams and instructions. Or at least let you know if it’s possible or has to be sent back to the manufacturer.

I wouldn’t fancy trying to take a surface pro apart - they are difficult, being a tablet form.

I brought it in October 2020 brand new.

Just checked your laptop on your profile - this is a similar model. If you look at the photo part way down the page where the inside of the laptop is shown with the back off, the cmos battery is on the very far right hand side about half way up - small round shiny thing. A large button type battery. They just lift out for replacement.

Quite a lot of screws to take out and the battery needs to be fully discharged first. Ie let it go flat.

An IT technician could do it quickly and easily. This describes it as a 15 minute job. This isn’t exactly the same model as yours but similar - still an acer 3 a315. The tutorial is for battery replacement rather than cmos battery replacement but to get at it is the same instructions.

It might be worth paying someone to do the job - that might not invalidate your insurance. If the clock isn’t keeping time then the cmos would be suspect.

Acer Aspire 3 A315-21-92FX Battery Replacement - iFixit Repair Guide

The Time function crashing is more likely to be the Time Synchronisation server, you can change servers to test that quite easily in Windows 10 settings. i.e. it will get more, or less frequent.

Settings > Time & Language > Region > Additional date, time & regional settings > Set the time and date > Internet Time Tab > Change settings > Server: the drop down box gives a choice. > OK.

You cannot tell from your image how frequent that is, or the occasion which only you will know about.

Laptop 1 year old it is very unlikely to be the CMOS battery. They last roughly 7 years.
It can be awkwardly placed in some Laptops.

Due to the number of errors I would run the SFC and DISM command line stuff, guides are in the tutorials on here.

Good point - I didn't realise it was so new. Changing the time server was the first thing I tried on my laptop recently. It kind of worked in that it kept time when switched on then. But lost time when switched off again so mine was still cmos.

Apparently Asus shipped a load of new laptops with duff cmos batteries - so it's possible - even though it's not Asus.

But advice to run SFC/Scannow is good. Also maybe run malwarebytes free and see if it finds anything. PUPS can do funny things too.