Windows 10 Insider Preview 16193.1001
Windows Insider Preview 16193.1001 not downloading - Error 0x80070002
I've seen a number of posts of people having issues upgrading their Windows 10 installation to Windows Insider Preview Version 16193.1001 - specifically they're getting Error 0x80070002 in Windows update.
The simplest way to fix this is to use the Windows Update Troubleshooter - you can get it here:
Let it do its thing, then re-run Windows update. Should sort it out for you.
As a side note, you can download the latest Windows Insider Preview ISOs from here: