Question Why can't i convert dynamic to basic on a 3TB hdd?

Rahat_

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Oct 24, 2015
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When i was reinstalling windows...the first was.. i did set a hard drive priorities to flash drive..then the setup wasnt gone through....error came up says "windows cannot be installed to this disk"...i wasnt fully aware and i knew that i did something wrong in bios setup about..hard drive that cannot recognize to install in c drive..then i fixed it and it installed...and after finishing windows...when i go to the explorer manger there was no except c drive...other drive was gone!!! i was shocked about my data...got anxious...
I opened diskmgr it was dynamic disk...saw a little icon like "invalid"...

I tried to convert to basic but i cant loss my data...i also tried with minitool,aomei partition wizard..nothing but hopeless...my drive is 3TB and minitool says "failed to convert the specified dynamic disk" and aomei says "the disk is greater than 2tb it cannot be converted"

I have 1 ssd 2 hdd..500gb+3tb

Any help please???