Windows 10: Win 10 upgrade to Build 10586 continually fails

Since I installed Win 10 Build 10240 a few months ago Windows Update has been trying on an almost daily basis to upgrade it to the current Build 10586. While all other updates seem to have installed normally, this one has consistently failed. Yesterday I tried a manual upgrade using a DVD of the downloaded Build 10586. I turned off Windows Defender and Windows Firewall and ran Setup from the DVD as Administrator. But it failed during the initial Installing Windows phase at roughly the 18% mark, leaving what has to be the most useless message Microsoft has ever come up with: "Something happened--Windows 10 installation has failed". I looked at setuperr.log but am not able to decipher what may have happened. I've attached that log; can anyone come up with a reason the installation failed and what I might be able to do about it? (I realize that I could probably do a clean install of Build 10586 but would prefer to do the upgrade if possible.

:)

 

every attempt to upgrade to Win 10 SL build 10586 failed

hello sumit bro, first of all thanks for all your help, Now at last after a long struggle, I get the Win 10 Build 10586 and upgraded my Windows 10 build 10240 to build 10586 successfully. Now Can I make a clean install of this Windows 10 Build 10586 on
my PC with the Win10 build 10586 ISO image.

 

Window 10 - an unmitigated failure

Windows 10 is an UNMITIGATED failure

To start with - why force updates on us - when they fail - we are stuck

for example the latest update 1511 build 10586.

non-compatible with my system - stuck at 36 % for several hours - will have to roll back - but will Windows allow me to run an out of date OS, without continually trying to force me to update ?

Then there's the security/snooping aspects - don't get me started

I will NOT be upgrading my perfect Win 7 Pro desktop to Win 10 !!!

 

I reposted this as

Solved Need help with setuperr.log on failed upgrades to Build 10586 - Windows 10 Forums

and got a solution.