Hello,
Hello DreadingBeast21 ,
My name is Patricia and I am an Independent Advisor. I am here to help you today.
On the website of your pc, with the exact model, you should be able to find the initial version.
Another way would be to perform a reset factory if the OEM partition is keeped an in good state.
What are your PC manufacturer and exact model ?
If it doesn't work, I suggest you call Mcrososoft support with the product key and they will tell you the edition corresponding.
https://support.microsoft.com/en-us/contactus/
To extact the product key,
1- Open 'Command Prompt' with Admin privileges (right click -> Run as Administrator)
2- Copy/paste the Following command + Enter
powershell "(Get-WmiObject -query ‘select * from SoftwareLicensingService’).OA3xOriginalProductKey"