1.    02 Sep 2016 #1
    Join Date : Oct 2015
    Posts : 92
    64-bit Windows 10 Home

    9/1/2016 update rendered my machine unbootable . . .

    -Don't know what number update this was that I automatically received yesterday, but it left my current configuration unbootable, so that even my Macrium Reflect "Fix Boot Errors" could not fix it . . .
    -Ran my last Full Backup from Reflect's Rescue disk, mid-August, and I am up and running again.
    -Anyone else?
      My ComputerSystem Spec
  2.    02 Sep 2016 #2
    Join Date : Oct 2015
    Posts : 92
    64-bit Windows 10 Home
    Thread Starter

    OK, have just read in another thread that 'Fast-Startup' may have a bug that may cause a problem with updates, so I have disabled that function and will report back if that seems to fix my boot problem after updating . . .
      My ComputerSystem Spec
  3.    02 Sep 2016 #3
    Join Date : Jan 2015
    Posts : 152

    I had the same problem several times. And like you, I too had a Reflect disk backup that got me up and running in almost no time. After trying several different things I went to the trouble of downloading the Win10 ISO file, burning it to an optical disk, and running the update from there.

    That failed also, but in a different way: After all the intermediate installs & reboots the update process says "We are restoring your previous system" which it does A-OK. But it leaves several directories of update stuff that have to be manually deleted.
      My ComputerSystem Spec
  4.    03 Sep 2016 #4
    Join Date : Oct 2015
    Posts : 92
    64-bit Windows 10 Home
    Thread Starter

    OK, finally achieved Cumulative Update for Windows 10 Version 1607 for x64-based Systems (KB3176938) . . .
    -System still did not boot-up after the update was applied; had to use my Macrium Reflect disk's "Fix Boot Problems" tool . . . That got me running again, so I must assume that turning off the Win10 "Fast Startup" feature does have something to do with at least this particular update causing boot problems . . .

    -This update did once again 'un-mark' the drive letter on my 'D:-Data' drive . . . easy to fix but a nuisance to have to attend, again.
      My ComputerSystem Spec


Similar Threads
Thread Forum
Solved Graphics driver failure followed by unbootable system
Hi Windows 10 has been installed on my old Toshiba Tecra laptop for some weeks now and running fine. Last night the machine rebooted, I think after a MS Office 365 update. The whole drive is encrypted with Truecrypt. I was able to get back in...
Graphic Cards
Canonical method to find and fix corrupt boot files on unbootable PC?
Hi all, I am having a repeat problem: my unstable PC BSODed while I wasn't doing anything, rebooted and then BSODed again on boot (0xc000021a), rebooted to the repair environment, which failed to fix it: my machine is unbootable. As before,...
Performance & Maintenance
Anniversary update fails, leaving system unbootable
Perhaps someone can tell me what went wrong here. I have a bottom-rung Dell Inspiron 330s that I inherited from a family member. It shipped with Win7 Home, and while it was eligible I had updated it to Win10 1511. Very little if anything on it...
Windows Updates and Activation
CTRL + ALT + DEL menu not rendered at the top
This is a terribly annoying problem. Whenever I play a game such as Garry's mod which is running on the old source engine and tends to freeze while joining servers, force quitting it with CTRL + ALT + DEL is completely impossible. The issue is...
General Support
Computer Rendered Useless after Technical Support Call
I can not find an emoticon to share my frustration right now. I recently called avast! Customer Support, and after the call, my computer has been rendered useless. The support guy was very controlling, and the support software was faulty! After we...
General Support
Our Sites
Site Links
About Us
Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 10" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd
All times are GMT -5. The time now is 10:50.
Find Us
Twitter Facebook Google+ Ten Forums iOS App Ten Forums Android App

Windows 10 Forums