Has anyone experienced this first hand and if so discovered what was their issue? 

Got so frustrated that I did a fresh format/install of Windows 10 but it is creeping up again.  So it's either a hardware, driver or software issue... ha! That cuts it down.  Added a new CPU, new Motherboard, tested RAM and HDDs.  SO now I am leaning towards USB connections.  Yes, I have read up on the issues and tried I think all of them but still researching.  Hence if any simmer has had this and fixed it I would be curious to see what the issue was.

Happy 4th

Hmmmm. Not much to go on. Restarts for me have seldom been hardware based. I take it you are reloading your computer from backups after the reformat. How sure are you of the quality of the backups?

Is it possible that Win10 is trying to update itself?   That may account for the multiple reboots. (?)  But I assume you already ruled that out by letting it "do its thing" for quite some time?

I've noticed Win10 doing reboots after certain updates, and it often does seem like it is caught in a loop, but eventually it has always stopped the cycle for me, after it finished whatever it was doing.  Sometimes it took a long time...like a good 10+ minutes of cycling and colorful words from me as I observed this.

Another thing you might want to check are whether or not your BIOS is compatible with the new Win10 build.  Also make sure you have if needed, motherboard chipset drivers and any storage drivers installed.

I haven't had an endless boot cycle happen, except for the earlier-mentioned situation, and that wasn't with a new build.  Hope you get to the bottom of it.  Worst-case you can format and re-install the OS, it's not like you have anything installed on there yet.

On 7/3/2020 at 4:48 PM, Clutch Cargo said:

Has anyone experienced this first hand and if so discovered what was their issue? 

I had a similar problem when I first installed Windows 10 when it was released. After many hours (days?) of unsuccessful fault-finding, in frustration I opened up the BIOS and moved the boot disk down the list of available hard drives so it was no longer the first drive being accessed and it subsequently worked perfectly. I've still no real explanation as to why this worked. My best guess is that the system needed a tiny delay before accessing the boot drive.

My Windows 10 was also installed by myself, but after that, nothing went wrong,of course, there is not only one way to install Windows 10, and I don’t know how you did it.

Thx, for the replies guys.  Well, I think I found the culprit.  The only thing I did not swap out was the PSU.  And it looks like that was it.  After taking out a 10 year old Rosewill 1300W I dropped in a new KingWin 1000W and haven't seen a endless boot yet.  I have seen a freeze during booting and will study that for awhile.