Hi Ma'Nya,
This is Wil, one of the independent advisor, an expert with Windows 10 and a fellow Windows 10 user like you. I understand your concern about Minecraft.
The Minecraft on Windows 10 is the Bedrock Edition which is different from what you had before which was the Java Edition. Players who have purchased Minecraft: Java Edition before October 19th, 2018 can get Minecraft for Windows 10 for free by visiting their Mojang account. You may access this link for more information on how you can redeem your free Minecraft Bedrock Edition.
https://help.minecraft.net/hc/en-us/articles/36...
I hope the information I provided will help you. If you need further assistance please do reply back and I will respond as quickly as possible. Have a nice day.
Thanks,
Wilfred P.
Independent Advisor