i cant activate my windows 10 after clean format from windows 8.1. what should i do

so this method don't need any product key to activate windows?

if this method is proven, can this thread be pinned?

Yup. Its keyless if you follow the step by step.

does that mean that in order to have clean install without key, i need to upgrade to win 10 first then only start step by step of this guide?

Hi everyone,

I realized that by taking advantage of participating for the automatic free upgrade to Windows 10 from Windows 7 / 8 / 8.1
made my SSD / HDD having tons of 4k misalignment. The best way to destroy 4k misalignment = CLEAN INSTALLATION (reformat)

Even after "Restore factory settings" inside Windows 10 recovery setting, the 4k misalignment are still there. Not solving anything.

I tried do it by myself, using my own method and yes i destroyed my system, windows not activated, lagging, getting blue screen
and then no OS in my SSD hahaha. Luckily I had another laptop as back up. These are the step by steps that I suggest you to do:-

1. Transfer every important files to external HDD or simply do a full back up on another HDD (if you have any)

2. Download THIS FILE : Media Creation Tool

3. Run the Media Creation Tool and choose "Create Installation Media For Another PC", then hit "Next"


4. Choose your language, edition and architecture properly. If you're on Windows 10 Home then choose that, don't choose Pro, then hit "Next"


5. Choose "USB Flash Drive" then hit "Next", select your "USB Drive" and then hit "Next"


6. The Windows 10 installation files will be downloaded for 15-20 minutes depending on your internet connection.

7. Once finish, go to SETTINGS >> RECOVERY >> ADVANCE STARTUP >> RESTART NOW


8. A new light blue screen, hit "Use A Device / USB, then wait for it to restart and bring you to the installation area.


9. Keep on clicking "Next" or "Install" until you're at the "Windows Setup" area where you can choose where to install the CLEAN Windows 10.

10. Choose the C : drive and press "Format"

For this step if only your old driver is MBR, if not just skip to #13. It seems like my old drive was MBR so when I create installation media it bring along the MBR configuration into the USB.


13. Choose the C : drive earlier and hit "New", apply your size for the C : drive and hit "Next"

14. Your system will do a CLEAN installation now, just wait until it finish and choose the input for region, time and date.

15. DON'T USE EXPRESS SETTING, press "Customize Settings" and follow the pictures below






16. DON'T WASTE YOUR TIME login to windows account, just skip it and type your local name, hit "Next"
Click here - images exceeded for forum LYN, sorry!

17. Windows 10 finally at the final stage of preparing and yeahh you have a CLEAN Windows 10, open AS SSD or any  4k misalignment detector, nothing! 0!

18. Look at my AS SSD result (not in Samsung rapid mode because Windows 10 not yet fully support), previously with  4k misalignment the score was 669 and now its over 1000!
Click here - images exceeded for forum LYN, sorry!

         

If you think you want to change your drive from MBR to GPT or the other way around without any loss after CLEAN installation
Please download >>>>> HERE <<<<< Kindly install the AOMEI Partition Assistant Professional Edition,
run it with administrator, then right click your C : drive (currently MBR) and choose convert to GPT. Make sure your UEFI is ENABLE.

This is for Dell system only?

Any sifu know how to reinstall win 10 wihtout format my hdd? I got this blue screen message "bad_system_config_info".

one question remind puzzle to me, is the windows activate bound on the motherboard? what if motherboard being replace will it still being activate on new motherboard?

i going to do a clean format after upgrade from window 7 to 10 yesterday...my bios currently in legacy boot, so should i change the boot mode to uefi first? and did i need to convert MBR to GPT first or can i do it during the installation as mention in step 11 &12? which step shall i do 1st? thaks for help

good guide for clean install , thumbs up

Thanks man! 

The best way is, use the official mediacreation tool frm m$
It will do some checking upon ur system for valid license before proceed to do clean instll