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  1.    09 Aug 2015 #30
    Join Date : Aug 2015
    Posts : 1
    Windows

    So I've been trying to go back to my previous build and its telling me "restarting" and has been doing this for 30 minutes.... Is this normal?
      My ComputerSystem Spec
  2.    09 Aug 2015 #31
    Join Date : Oct 2013
    Posts : 25,723
    64-bit Windows 10 Pro build 17046
    Thread Starter

    Hello Cylliq, and welcome to Ten Forums.

    Sometimes it can take quite some time to finish. As long as you have hard drive activity, it would be best to let it sit until finished.
      My ComputersSystem Spec
  3.    14 Aug 2015 #32
    Join Date : Apr 2014
    Posts : 3,361
    W10 Pro x64/W7 Ultimate x64 dual boot main - W10 Pro Insider Preview/W7 Pro x64 - remote pc

    I will be updating this later since I just saw not only the upgrade on a second custom build but a clean install the day before that being activated once the upgrade took place. Since the clean install is up and running strong and activated I can now revert the upgrade back in order to restore the dual boot with 7. I couldn't toss a temp install of 7 there since it's only a one drive system used remotely and for testing things keeping the main build isolated which also saw an upgrade replaced however.

    Noting the time on today's date at 6:48pm est we'll see how long it takes on the fly! Should be ready by 7:30 at the latest I would assume.

    UPDATE: No Go on the revert back to 7. Upon browsing the drive I didn't find any Windows.old folder which would normally have to removed. Will try again.
    Last edited by Night Hawk; 14 Aug 2015 at 18:37. Reason: additional information
      My ComputerSystem Spec
  4.    18 Aug 2015 #33
    Join Date : Aug 2015
    Posts : 17
    win 10

    How long should it take to revert back to 8.1? My PC has been on for more than an hour, and it stills says reverting...the circle is spinning, but should it take so long?
    I am attempting to revert back because of total failure of 10 to start....it ran fine since installation on 7/31, but now it will not start. I either get a black screen(no mouse), or it freezes up completely, or a yellow screen........ It took many tries to even get it to the point of attempting repair...which it could not do. I tried restoring to the 2 last points, but that did not work either! I am hoping to get back to 8.1 and start over, but I am thinking that it may not be able to!
    As I don't have a cd/dvd rom device connected at this point, I cannot even use my 8.1 disc...........
    I do not want to shut down my pc until it finished its process, but how long should I wait until I give up?
      My ComputerSystem Spec
  5.    18 Aug 2015 #34
    Join Date : Oct 2013
    Posts : 25,723
    64-bit Windows 10 Pro build 17046
    Thread Starter

    Hello olblindman, and welcome to Ten Forums.

    It varies wildly from system to system based on if there were any issues, system specs, etc....

    In a perfect situation without issues and a reasonably fast PC, it could take around 10-20 minutes.

    As long as you have hard drive activity though, it's best to let it sit until finished to avoid possibly having to do a clean install.
      My ComputersSystem Spec
  6.    18 Aug 2015 #35
    Join Date : Aug 2015
    Posts : 17
    win 10

    My PC is pretty fast, and I have RAM to spare.....but I do not have an HD LED, so the only way I see activity is the spinning wheel of dots....for the last hour. The HD is SSD. I hate to wipe out my drive and start anew, but it may come to that. Luckily, I have my OS on one drive, and my games, files and photos on other drives. Still, I know there will be lost files.......
    I think the whole problem started with an unintentional restart during an update..............
      My ComputerSystem Spec
  7.    18 Aug 2015 #36
    Join Date : Oct 2013
    Posts : 25,723
    64-bit Windows 10 Pro build 17046
    Thread Starter

    You might wait at least another hour to see if you have any progress. If you don't still hear the drive clicking away by then, it may be time to consider a clean install if a restart doesn't help.
      My ComputersSystem Spec
  8.    18 Aug 2015 #37
    Join Date : Apr 2014
    Posts : 3,361
    W10 Pro x64/W7 Ultimate x64 dual boot main - W10 Pro Insider Preview/W7 Pro x64 - remote pc

    Well that's what I ended doing here alright but only when not finding the Windows.old folder now being nuked on the second clean install of 10 to the first of a now two drive system I knew that the 7 install could either be replaced and lose 10 off of the drive entirely or restore the original image made of 7 and put another clean install of 10 since moving the second primary to the front of a drive usually sees trouble like no more boot loader or BCD store!

    And as I expected the move of the second primary back after the first 7 upgraded over primary was gone resulted in an unbootable drive. Funny how it takes so much longer to transfers the files I needed back on by way of a large usb flash drive then it takes to repartition and reOS a drive!
      My ComputerSystem Spec
  9.    09 Sep 2015 #38
    Join Date : Oct 2013
    A Finnish expat in Germany
    Posts : 13,109
    Windows 10 Pro

    Some observations, I am not saying what I have experienced in my tests is how this always works but I can reproduce the behavior told below, have done both Option One and Option Two as told in this tutorial two times (four times altogether) now on the same hardware and the results are the same on each try.

    The underlying previous Windows version in all four tests Windows 8.1 Pro N, clean installed and activated with a retail product key.


    • Before restoring the previous Windows version, when Windows 10 was still in use and activated, I could not reuse the underlying Windows 8.1 Pro N retail key on another hardware getting the notification about the key being used on another PC.
    • Restoring the previous Windows version, Option One took on this hardware both times almost 90 minutes, Option Two about 20 minutes.
    • After reverting to previous Windows version, it was activated on all four tries as it had been before the upgrade.
    • When the previous Windows 8.1 Pro N was restored, I tried to reuse this retail product key simply by uninstalling the key first with Software License Manager (command: slmgr /upk). This removes the Windows activation and it needs to be reactivated.
    • Trying to reactivate Windows with the product key I had uninstalled after reverting to Windows 8.1 Pro N with Option One, the process had not "released" the underlying Windows 8.1 Pro N product key and the activation did not work, I was not able to activate Windows with that key. This was the same on both tries.
    • Trying to reactivate Windows with the product key I had uninstalled after reverting to it with Option Two, the process had "released" the underlying Windows 8.1 Pro N product key and the activation was successful, I was able to activate Windows with that key. This was the same on both tries.

    As I mentioned, I do not want to say this is how it always works. In fact I cannot understand what the method I used to revert to previous version of Windows has to do with releasing or not releasing the product key of the previous version. I tested this by first creating a system image when in Windows 10 and it was activated after the upgrade from 8.1, then restoring this image after each test run and starting from beginning, reverting to 8.1.

    Kari
      My ComputerSystem Spec
  10.    09 Sep 2015 #39
    Join Date : Apr 2014
    Posts : 3,361
    W10 Pro x64/W7 Ultimate x64 dual boot main - W10 Pro Insider Preview/W7 Pro x64 - remote pc

    I think that will now only benefit those who only recently or will be upgrading to 10 since anyone who went for 10 back in July is no longer able to revert back but will need to see a full clean install of the older version. Many simply opt to wipe a drive clean once all files are backed up when not having any option to revert to the previous version.

    At this point having run 10240 rtm since first out I know why some might want to revert from having seen the initial upgrade turn out faulty! That may just scare some away where they then simply want to go back to the prior they had on. But in some cases the rush to clean up the Windows.old and other temp install folders will prevent any reversion back. Those have to remain intact when first trying 10 out.

    If I had upgraded a single drive system and had found 10 anything like 8 then I may have opted to revert back to see if I could get 7 going again but had planned a dual boot of both ahead of time automatically canceling that out. I had previously run one of the earlier builds and wanted to give 10 a good work out instead! So far so good!
      My ComputerSystem Spec

 
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