Sorry, my issue is with Precision 7530. But the issue is the same

Seems that the current solution for both 7730 and 7530 is to disable integrated graphics in the new BIOS and use the discrete VGA, which is not very useful in terms of saving energy/battery life and quiet operation of the system.

I decided to wait for the next BIOS iteration and hope it will fix the problem.

@hrachia's solution fixed this for me, so many thanks. In case it helps anyone: I had to do a hard reset by disconnecting the battery before it would boot into the BIOS to allow disabling integrated graphics.

You can downgrade the bios. This will help you save battery.

So petty they Dell is still pushing the buggy bios updates to these premium laptops. And after month not having a bugfix.

Same problem here.

Our company have had 4 Precision 7730's with the problem and we sent one of them back to the Dell test lab to see if they can use it to fix the bios 1.16.1 with Windows issue.  So far nothing has changed.

Whatever you do, disable the bios update on the 7730 to keep it from upgrading to 1.16.1 at all costs or you will have a bricked computer. I had 2 7730's where Dell replaced the system board twice before we knew it was the Bios and a new Windows update that caused this issue. I tried downgrading the bios to 1.15.3 on 3 of the affected computers, but it never would work right even after changing settings in the bios menu to allow recovery. Also, 1.16.1 will cause the Dell dock to stop working and then on some of the affected computers, they won't charge no matter what you plug in whether it is the 240W power adapter barrel style connector or the newer USBC charger and after awhile, the workstation will just fail and then it becomes a paperweight.

Same problem for me on my 7730.

Out of curiosity, did any of you go into the bios and reset it to defaults after the upgrade?

I had the freezing problem on my Precision 7730 with 1.16.1, and so I updated to 1.17.0 and its working fine.  Thanks for the post - very helpful to know this was the cause.

The new 1.17 BIOS is also faulty. It behaves like a sneaky virus with similar GPU (maybe Optimus) problems occurring not immediately after upgrade but in a few days. Don't update your BIOS, keep the 1.15.3.