Windows 10: Formatted then Cant seem to upgrade to Pro and license disappeared

So as the title says I formatted my computer to give it a fresh install of windows. reasons, had a few issues that a fresh install would helpMy laptop came with windows 10 home but I could upgrade it to windows 10 pro I had the key written down and that's how I could have done it, unfortunately i don't have it written down anywhere anymore.But when I finished the install and tried to run the upgrade to windows 10 pro. The go to the Microsoft > windows 10 pro. and if there is a button that says install you could press that to upgrade to windows 10 pro since you owned a key.I tried this

:)

 

How To Format A Write Protected Flash Memory ?

¿You already tried this one?...

Run CMD


1. diskpart
2. list disk

Then in the 3º step, put the correct number of disk in the list for the usb flash (if it's listed in disk 3, then you'll have to write select disk 3).

2. select disk #
3. clean
4. create partition primary
5. select partition 1
6. active
7. format fs=fat32
8. assign
9. exit

with that commands you will format the flash drive in fat32, if you have a large drive you can select also "format fs=ntfs" in step 7.

good luck!

 

why there is just one way to upgrade from W10 Home to W10 Pro?

You can purchase a full license key, but keep in mind, the full retail license for Windows 10 Pro is more expensive than the $99 upgrade through the Store.

Step 1: Purchase license for Windows 10 Pro, then receive your key:

Buy Windows 10 Home/Pro

Step 2: Perform an Easy Upgrade using the key:

• How
  to Perform an Easy Upgrade in Windows 10

 

Can't upgrade from Windows 10 Home to Pro

Hi Bill,

Thank you for posting your query in Microsoft Community. We apologize for the inconvenience caused and will assist you in the best possible ways.

I suggest you to download and create an installation media for Windows 10 Pro form the link provided below:

Download Windows 10

After the installation media is created, suggest you to upgrade to Windows 10 Pro from the installation media. When the upgrade asks for product key, enter the product key purchased for Windows 10 Pro. If it does not accept, suggest you to skip the activation
step. After the Operating System is installed, suggest you to activate by phone by following the steps below:

• Press “Windows key + R” and type “slui 4” and press Enter.
• Select the Region from the list and click Next.
• Call the Toll-Free number provided on top and can activate via phone.

Hope this helps. Keep us posted on the status for further assistance.