Inspiron 24-7459 No rolling dots on start up (black screen with Dell logo)

Do you turn PC off using a power strip or surge protector after shutting Windows down? Remove those and connect the AC adapter directly to a working wall outlet.

Try disconnecting all external USB devices, except mouse and keyboard.

What color is the power button when it doesn't boot?

Reboot and immediately press F12. Look for options to run diagnostics, including the extended hard drive tests. Copy error message(s), if any. Hard drive tests can take a long time, so be patient.

Version of Windows?

No rolling dots means its crashing BEFORE POST is done so its likely that the hard drive is corrupted or worse physically bad and locking up.  Rolling dots comes from windows.

Being an AIO means this is VERY Difficult to work on.

https://topics-cdn.dell.com/pdf/inspiron-24-7459-aio_service-manual_en-us.pdf

https://www.dell.com/support/manuals/us/en/04/inspiron-24-7459-aio/inspiron-24-7459-aio-v1/before-working-inside-your-computer?guid=guid-5d3b1051-9384-409a-8d5b-9b53bd496de8&lang=en-us

https://www.dell.com/support/manuals/us/en/19/inspiron-24-7459-aio/inspiron-24-7459-aio-v1/removing-the-hard-drive?guid=GUID-5DE1E07B-4633-4536-ACBF-4A3067007FE0&lang=en-us

Hi thanks for the update, I have been away so have not been able to try your solutions yet. I will give it a go later today & let you know how I go.

I do use a power board so will try your suggestion. I believe the power button is blue but will confirm.

I have Windows 10 home.

I will let you know how I went

I have tried everything and nothing works. 

I have run a full diagnostic and there are no errors.

the power button lights up blue when it doesn’t boot.

I am using Windows 10 Home

Does it still boot to the normally to the desktop on second try?

Might be a dead motherboard battery. Check the Service Manual for details, but working inside an All-In-One isn't as easy as working inside a desktop PC...

Yes it boots normally on the second attempt with no issues. Thanks I will check the manuals

At least you have a work-around for the moment, but I'd back up all personal files, or image the entire hard drive, on external media asap to be safe...

Is PC connected to a surge protector that you turn off after shutting down or do you unplug the PC from the wall after shutting down?

I am experiencing the exact same issue.  Did you find a fix?

To circumvent problem disable hibernate. admin command prompt type powercfg /h off computer will then sleep and startup fine. But hibernate and fast startup will not work.

ok thanks, I will give this a try. If I want to revert back & enable hibernate & fast start up (if it doesn't work), can this be done & what is the process?

Do not enable Fast Start up or Hibernate. This is the cause of the problem.

I had the same problem and searched for months until I stumble on this solution - that is not the enable Fast Start up. Some also said to unchecked Hibernate. I did both and it works.