Windows 10: I have no longer access to my harddrive

Hi, was removing some old accesses to the harddrive, but went a bit to fast and removed all access for everyone. So now i cant get into my C:, and i dont have any other drives. Tryed reinstalling windows, but now i have a new user called admin, but i still cant access C: and i cant overrule the fault i did. pls help a noob :

:)

 

Best gaming harddrive Sugestion ???

Seagate states on their 750gb,32mb cache harddrive that the best application is video surveillance.(liquor stores,how very sad and completly overpriced for the amount of problems they have).Yet Passmark lists this near the top of their harddrive page.Any one have a suggestion for something that will last.(maybe samsung???)
Also I was considering a Raidmax hybrid 2 sli 630w powersupply.Any thoughts on Raidmax??

 

How do I turn a storage pool back into a normal harddrive?

A while age I converted my Toshiba Harddrive into a storage pool so I could fit more storage onto my Windows 10 laptop. I no longer need it to be a storage pool anymore and want to convert it back to its original state so it can work like a normal harddrive again.

I tried doing this myself by going into the disk management place and deleting the volume on it, but then it disappeared and there was no option to convert it back to a basic disk which I thought would be the last step. It completely disappeared and I don't know how to access my drive anymore as I cannot find it anywhere in my computer.

All the help would be appreciated as this harddrive cost me an arm and a leg and I really want it to go back to normal.

Thank you.

 

access BIOS settings in Win 10

I have an 8-year old computer running Win 10. I need to access the BIOS settings. It used to be the holding down the F2 key during startup would bring up the BIOS screen in Windows computers. But this no longer works. A web article listed a complicated
series of steps leading to a reboot . . . but still no access to BIOS. Any suggestions?