Forum Discussion

Andor Oudt's avatar
Andor Oudt
Brass Contributor
May 10, 2018

Windows 10 Insider Preview 17666.1000 - failed install attempt - 0xc1900101

LS, it seems that the latest preview build does not get installed.   What's even more mysterious, is that the previous, successful installation, was a newer release than the one not installing curr...
suresh lal's avatar
suresh lal
Copper Contributor
May 11, 2018

Thanks for the suggestion.

I have enough space - 144 GB free

Tried the windows update troubleshooter, found problem and corrected it, but the update to 17666 still unsuccessful. Will keep repeating and hope for better luck.

Michael Flynn's avatar
Michael Flynn
Copper Contributor
May 11, 2018

I am also having the same issue. The installer hangs at "preparing to install - 80%" indefinitely.  I tried running the windows update bat file provided above but it ran headfirst into the SOPHOS virus scanner, a service that it can't turn off, and failed. 

  • Alex Blink's avatar
    Alex Blink
    Copper Contributor
    May 11, 2018

    I had the same behavior too.

    Sometimes it hung on preparing step at 100%, sometimes at 99%, 70%, sometimes it went to the next step and then could hang too.
    I was just watching to the task manager, is it doing something or not.
    And it was, but then like crashing and starts to prepare again from the beginning.

    When I saw "preparing" again, I did a reboot to start "preparing" again with a clean start. (I don't know, is it was helpful or just the same as just keep waiting again)

     

    By the way, when I finally get updated it was really long "preparing", "installing", but the main update process went smoothly.