Announcing Windows 10 Insider Preview Build 16215 PC + 15222 Mobile Insider

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My desktop was stuck at 33% for well over an hour. I hit the reset button, and it booted back into 16199. Now it is attempting to download 16215 again.

Laptop upgrade perfectly fine.

Second attempt at install failed a bit sooner than the first, around 18%. Error code same: 0x80070643.
It also inserted a check 0x8024a105 for update failures.

Ran Update Troubleshooter and it found Service Registration Missing Or Corrupt....fixed.

Seeing quite a few having the same problems in Windows Feedback.

- once again, had to do the msconfig trick to enable maximum cores and Memory..
- also set ULPS in Trixx..

- still testing..:)

Second attempt. Both physical machine and Hyper-V VM. Full story later.

I totally agree with the slowness.
There must be something BIG about this update.
But I think, the degree of slowness is location based.
Here in Toronto, Canada, on a wired machine, it took me 59mins to complete the update.

Here's how it unfolded...

Started the update at 9:15pm (ETA),



It took 35mins to get to 40% installation.



First Restart after 39mins...



All done in almost an hour...

This is the second attempt on the physical machine (left most window) and the first attempt on the Hyper-V VM. The first attempt on the physical machine was a disaster (I'll include details after these processes conclude).

Tried to install 16215 twice on my Surface 4. Install rebooted, made it to 32% installed and choked both times, then automatically rolled back to 16199.

EDIT: Make that 3 times now. Changed my connection to metered to stop it from trying again.