New Xbox Update reformatted my external HDD

I reset my xbox then it said home has taken too long to start and then stays on a black screen

After you reset your XBox, did you reformat the external storage you used?

I found something that seems to recreate this situation, for me, consistently:

I have a 1TB SSD External Storage card and a WD_Black D10 8TB external USB 3.x HDD connected to my XBOX Series X (XBSX), and plugged into the USB port above the Ethernet port.

When I have both devices plugged it, then I will always get a black screen after the XBOX boot logo/animation plays, and never see any login screen or home screen, until I do a hard shutdown, and turning the console on, again.

If I unplug one of them, and restart the console, then everything works like a charm, but, I am suspicious of my WD Black external HDD. When I did a factory reset of my console, I also moved everything off of the External SSD Storage to my external HDD,
so I could reformat the External SSD. However, I did not reformat my external HDD, so "maybe" that could be something, or, maybe its the USB port being used.

More testing.

Hi,

It could be that the update corrupted the files on your hdd. If you tried all this steps without success I would
suggest that you reformat your hdd on your laptop and try afterwards if your Xbox recognize it then.

I have found the cause of my problem and a solution. I went to package up the old Xbox and when i unplugged my external hard drive a miracle happened, she started working. When i plugged my external storage back in the screen went black. This all started
when the most recent update happened and i never put 2 and 2 together. So without wasting anymore time rambling, the fix is rather simple at the cost of losing all saved data. I plugged my HDD into my windows PC, proceeded to find the HDD in my devices. Note
that the HDD will not show up under my computer and can be a bit tricky to find. After this i proceeded to reformat the HDD to my PC, then reformatted it again on my Xbox. Now my Xbox is working again, sadly ill just have to reinstall everything. Hopefully
this helps someone, also sorry if my instructions on finding the HDD on your PC are lacking, i never kept track of the path i took to find it.

yes you are right - I just tried that by myself - I formatted my external hdd for xbox one and than connected it to a Windows pc - it is recognized but there is no "auto-popup" to reformat the disk so you have to go to control panel -> adminstrative tools
-> computer management and reformat it manually - but be aware - pick the right disk to prevent loosing data from other connected disks - if you are not sure disconnect you external hdd - it should vanish in the disk management view and reconnect then select
correct disk

Greetings

Oh and I just realized I used it as a BACKUP FOR MY COMPUTER! soo ***.