Windows Could Not Complete The Installation [SOLVED]

By Jonny Lin in Common Errors Tags: Windows

If you are installing your Windows operating system, and you get an error telling you “Windows could not complete the installation“, you are not alone. Many users are reporting it.

This is an annoying issue — and quite scary. Your computer is totally unusable if you can’t install the operating system. Perhaps you are anxiously thinking how you should do to get rid of this error.

But don’t worry. It is possible to fix this error. Here are four fixes you can try:

  1. Continue installation using advanced recovery
  2. Run the Windows account creation wizard
  3. Reinstall your system without activating it
  4. Find another source of installation media


Method 1: Continue installation using Automatic Repair

When your Windows installation process is stopped by the “could not complete” error, one effective method is to continue the process with the help of Advanced Recovery.

This method comes from a comment below left by I1t9t8o8. It is verified by a lot of users as truly useful for fixing the problem.

1) Turn on your computer, and then when your Windows starts to load, turn it off immediately. Do it two to three times until you see a message that says “Preparing Automatic Repair“. 

2) Click Advanced options.

3) Select Troubleshoot.

4) Select Reset this PC.

5) Select Keep my files.

6) Click Cancel. (No, you don’t need to reset your computer. Just click Cancel.)

7) Select Continue.

8) If this method works for you, it’ll continue the installation process and you won’t get the problem anymore.

If you have fixed your error, remember to create a system restore point and update all your device drivers in order to prevent more problems. To update device drivers, you can do it manually, but it can be very troublesome and time-consuming. To save your time and energy, we recommend using Driver Easy.

Driver Easy will automatically recognize your system and find the correct drivers for it. You don’t need to know exactly what system your computer is running, you don’t need to be troubled by the wrong driver you would be downloading, and you don’t need to worry about making a mistake when installing.

You can download and install your drivers by using either Free or Pro version of Driver Easy. But with the Pro version it takes only 2 clicks (and you get full support and a 30-day money back guarantee):

1) Download and Install Driver Easy.

2) Run Driver Easy and click the Scan Now button. Driver Easy will then scan your computer and detect any problem drivers.

3) Click the Update button next to each of your devices to download the latest and correct driver for this device. You can also click the Update All button at the bottom right to automatically update all outdated or missing drivers on your computer (this requires the Pro version — you will be prompted to upgrade when you click Update All).

4) Restart your computer, then you have already had the latest drivers installed on your computer.


Method 2: Run the Windows account creation wizard

This error may also occur because the Windows account is not created normally. You can run the account creation wizard to see if this fixes the problem. To do so:

1) On the screen with the error, press the Shift key and F10 at the same time on your keyboard to bring up Command Prompt.

2) Type “cd %windir%/system32/oobe/” and press Enter on your keyboard.

3) Type “msoobe” and press Enter on your keyboard.

4) Set up an account and password there on the user account creation wizard that appears.

5) Restart your computer and see if this fixes the error.

Method 3: Reinstall your system without activating it

Sometimes the error occurs when you are trying to install a specific version of Windows (such as Windows 10 Education). In this case, you can try reinstalling your system. But this time you should choose to install the Home version and don’t activate it during the installation. After the installation completes, use the product key to activate your system. It should run fine at this time.

Method 4: Find another source of installation media

The error may result from the system installer you use — maybe it’s corrupted or incorrect. You should make sure that your installation media is from a valid source. If it isn’t, try getting another reliable installation media from Microsoft and running it on your computer. Then check to see if the error disappears.

  • adin166

    Thé first method worked, for me. Awesome advices! Thank you, really!

  • Amrutha Hanumantha Rao

    thanks for the article….it worked for me 🙂

  • Bipasha Mukherjee

    Amazing solution man…..thank you so much. You are a true knight in the shiny armour

  • CherryOxblood

    Method 1 work like a charm.

  • Mikaela Bonador

    It worked! Thank you!

  • Ni Putu Febri Handayani

    Thank you. Thank you. Thank you. God bless you always. You are the best!

  • Suchismita Khuntia

    It worked for me thanks

  • Njeri Githu

    hey guys, please help me. my problem is that the dialog box with the message “windows could not complete the installation….” appears before the logo disappears. so i cant get into the advanced recovery !!!

  • Hari Mummidi

    Thank you bro it worked for me too…

  • Mel Elle

    A lifesaver! The first method worked for me, thank you!

  • timmydownawell

    OMG, option 2 did the trick. Thanks!

  • Glenn Nordal

    Thank you so much , been trying uninstall office 365 and reinstall it on my daughters computer only to find cannot complete the installation , this site saved me , and don’t worry i gave you all the credit for fixing her computer , 5 stars buddy !

  • Kimberly Abanto

    You’re the one!! Thank you for this! You’re amazing! 💞

  • Giovanni Moreira

    Thank God! it worked. I did the booting 3 times and then did the steps. it goes through then it blanks out. then reset once again and then the updates go through. awesome post!!! saves lives

  • mario

    Solution with method 1 on Asus X556UA-XO045T (almost new 8/2016) bricked by Win 10 Home 1709 update. Found on the net after a lot of unpaid hours of search !!!

    Not enought words to thank the explorer of this solution, not enought words to blame M$ for their laziness and lack of support for a solution to the computers they bricked. For sure my last M$ OS. Return to 8.1 is not a remote choice.
    M$ has not yet understood that computers are ALSO for work. Please stop to create work for your certified engineers and for computer shops. We are not like Bill $$$.

    p.s. I had no WIN logo before the error message, just the Asus splash screen. To obtain the Automatic Repair Menu I powered the notebook off as soon as I saw the Win rolling balls, two times.

  • Jesse

    You. Are. Awesome!

  • Nikki Hunsaker

    I can’t get any of this to work and I’m starting to get angry lol I can’t go back to the previous version either. What the heck Windows??

  • Anand Maddy

    Thanks alot i.method 1 works.thank u so much thank uuuuuuuuuuuuuuuuuuuuuu

  • Chakati Soft Techs

    Worked like charm……don’t know how that worked but thanks man……it worked ..

  • Jonny Lin

    Thanks for sharing this!

  • juan haha

    Arigathanks gozaimuch, it works for me, thank you very very much 🙂

  • Khaled Mahran

    Ty very much my friend it works fine at frist time really appreciate it ❤❤ i had alot of important files at C and was afraid to lose it.

  • Katie Burgess

    Thank you so much for your help I was stuck in this reboot loop for ages and was giving up. Saved my laptop!! Thanks!!

  • PM

    wooowww this actually worked!!, i clicked troubleshoot, then reset this pc, then keep my files, it started to prepare an it took like one minute or so, then in the confirmation i hit cancel and waited for like two minutes with a blue screen, then the initial menu appeared and i hitted exit and start windows or something like and puff it worked!!!

  • jdoubleu

    Thank the lucky stars! Installation continues. Thanks a bunch

  • Ralph

    Champ, thanks it worked perfectly.

  • Doug

    What I1t9t8o8 did worked for me!

  • Deepak Kushwaha

    Sir U have my Salute Sir….
    I’ll name my kids after u…

  • Jay Guerr

    What worked for me: Started with Method one but the “the user account creation wizard” never appeared after entering Shift+10, then “cd %windir%/system32/oobe/” and finally typing “msoobe”, nothing happened. So power-cycled the machine 3 times and then the Windows 10 Recovery Wizard came up. I chose to reset Windows while keeping my files.

  • mterrelll

    Unfortunately, this didn’t work for me, it doesn’t even start the repair after pushing “keep” personal files it just says it cant and then gives me the cancel button, it doesn’t actually start anything. But I still pushed cancel, it took a second to get back to the previous screen but when I did I pushed start windows….. And then it all happens again.

  • Mickey

    In the Troubleshoot page I click on REset this PC?

  • seanmartina

    did the same worked perfectly cancelled the restore rebooted boots straight to windows

  • Janis Vernavs

    Thank you it worked. Just to add in the button you need to press is under Advanced options -> Troubleshoot -> Reset this PC. From there you can fallow the original post.

    • Mickey

      Janis but the laptop request me to select a user, that’s normal?

  • Robert Albrecht

    You sir are a Bill Gates among mortal men. I wish I had found this 8 agonizing hours ago.

    • Mickey

      Please can you help me?

  • Vapid Sims

    Me too. After i enter msoobe it starts a new line with:’ c:windowssystem32oobe> ‘ again.

  • I1t9t8o8

    So I managed to get it started up. I turned off and on the computer 3 times to start advanced recovery. I was about to restore windows (reinstall windows and removing all apps and programs by keep personal files). I selected it and it started but I decided not to. I didn’t want to go through all that. So I hit cancel at the next prompt. I then selected start windows and it continued installation

    • austin online

      This worked for me! Thanks!

    • The BOY

      This works. Use this it’s so much easier.

    • Jule Scholten

      Sorry, I dont understand exactly how you did it, and I am getting desperate by now.. How did you try and start to reinstall windows? With the disc? And is it sure that I wont loose all the stuff on my PC? Thanks already

    • João Vitor De Oliveira Carlos

      I followed you steps and it actually worked, lol

    • araczynski

      THANK YOU!

    • Ebon Tru

      Thank you! This worked.

    • Syllie

      YESSSSSSSS! After searching all over the net and trying all sort of complicated stuff…..and was about to give up and just wipe everything…along came you and saved the day.. THANK YOU, This worked like a charm! If you are ever in St. Kitts, drinks are on me!!!

      • Mickey

        Syllie after doing all this, you didn’t lose any file right?

    • Yep. Worked like a charm.

      • Mickey

        Can you help me please!!!?

    • Dude, you’re my hero. Just wanted to double check if anyone has run into any problems since?

    • Ben

      Can i just thank you soo much, ive gon through 1 computer since it crashed and i didnt want to go through another, thank you so much, u dont know the gratitude i have for you right now

    • mterrelll

      Unfortunately, this didn’t work for me, it doesn’t even start the repair after pushing “keep” personal files it just says it cant and then gives me the cancel button, it doesn’t actually start anything. But I still pushed cancel, it took a second to get back to the previous screen but when I did I pushed start windows….. And then it all happens again.

      • Celestial Angell Noot

        Try cliking the restore previous version of Windows

      • juniorbrod1939

        I have the same problem as you

    • Yash Ambre Art-FX

      Dude!! You ROCK!!!
      It solved my problem!!
      Guys just create a system recovery point after doing his steps!!
      I love you I1t9t8o8!!!

    • It worked for me!
      I can’t believe it works so reliably for everyone.
      So you gave up on fixing it. Then gave up on giving up. And that magically fixed it?

    • Mike Mincey

      I wanted to also thank you for this tip. You’re a life saver.

    • Doug

      Thanks for your help with Microsoft’s garbage!

    • Ralph

      Champ, thanks it worked perfectly

    • Andre M W

      oh God, you saved me,,,

    • Andy Wright

      Fall Creators Update stalled.
      Method 1 worked like a dream!
      Very Many Thanks 🙂

    • Angela Steffan

      Yaaaaassssss, probably the first time I was provided a quick fix that WORKED!!!!! Thank You!!!!

    • Daryn Studebaker

      You are a hero!!!!

    • keziah souza

      Worked for me… thanks alot 🙂

    • Sarvinoz Hamzaeva

      1 worked for me too. Thanks for sharing your experience 🖒

    • Nikki Bernadez

      this works for me thank you!

    • Jaspreet Singh

      I did the same and everything is fine now. Thank you so kuch. God bless you <3

  • Greg Duncan

    Step 3 of method one does not get me any results. It simply creates new line to enter another command. Where can I go from here?

    Update: After several minutes, this message showed up…

    “The instruction at 0x00007FFD8763A54F referenced memory at 0xFFFFFFFFFFFFFFFF. The memory could not be read.

    Click on OK to terminate the program”

    Any ideas?


    • Sean Spies

      This is probably a long shot, but I’m having the same issue at step 3 of method 1, at least to the point nothing happens (still have received not additional pop-up after about 10 minutes of waiting). We’re you able to find a solution?

  • Klu Less

    This isn’t working. I’ve done these steps 4 times and no screen pops up after step 2. I type the “cd %windir%/system32/oobe” and hit enter, that completes successfully. Then when I type “msoobe” and hit enter, nothing happens at all. The command prompt screen just stays there and no further screens pop up. This is horribly unsavory. How the %#^$ does MS get away with screwing up all these people’s equipment and rendering them inoperable? Really, something should be done. They should be accountable for all the trouble they cause.