NEED HELP

Recently, I purchased a new SATA SSD(internal). And replace my old HDD by this new SSD. Now, I mistakenly created the SSD disk into MBR type partiton.

And by default, my laptop is on UEFI BOOT MODE. Due to MBR disk type, I need to change my boot mode to LEGACY.

Also, my C: is showing as Extended Drive(I don't know why)

My laptop details:

DELL INSPIRON 15-3567 (i7-7500U/8GB RAM)

Is it okay to use my laptop with these type of disk configuration ???

If not, then guide me to convert MBR to GPT disk type in order to use UEFI mode.

Thanks.