Windows 10: Can't set disk D: for aplications after C: disk factory reset.

Hello I need help becose one day when I tried to turn my computer it lags in login screen so I restarted and it do same so I tried so many thing but nothing worked so I do factory reset only for my C: drive but then when I turn on pc and want to set everything I cant set my disk D: for aplications, becose it sad some error with error code: "0x80070005" and i have no idea what to do I tried to rename WindowsApps on disk D: in linux, but it did same.Lukáš Poddaný

:)

 

resetting hard disk to factory settings

When I purchased my acer Nitro laptop, it came with a windows 10 pre-installed on it. The hard disk had only one partition which is C and it contained the operating system and other files. It used to show total space of C as around 1 TB when I view it
from 'This PC'. After that, I've created another partition and shrunk the size of C. Now I need to undo all the changes and have my disk resat to factory settings when it had only one partition. In disk management, it shows that windows is located on a separate
disk which has a space of 128GB and I think that's the SSD. But I'm sure it was all on the same disk when I purchased it. Maybe it was modified in some way for the two disks to share the space together or have access from one to another. Will it get resat
if I reset windows or I should format the disk first? And how can I get the original windows on my laptop again if I format disk? Thank you

 

Problems with Disk saving files! I changed saving to Disk D but it still saves stuff in Disk C.

I had done that already, the problem is that it's set to Disk D but it still saves in Disk C ... For example, whenever I want to download something ( ex: a game ) it'll go to the Download Folder in Disk D but afterwards it'll start downloading somwhere
in Disk C instead of D. Even though everything's set to Disk D it still downloads in Disk C.

 

Problems with Disk saving files! I changed saving to Disk D but it still saves stuff in Disk C.

I really need help right now. So I recently bought a pc. It has Disk C ( with 118 GB ) and Disk D (with 981 GB) the problem is... I want everything to be saved on Disk D by default and not on Disk C but that hasn't been working until now. I went to settings
and changed the storage location but it's still saving on Disk C and not D, what happens is... The Disk C gets full and I can't change things to Disk D if I change anything ( example: a game ) there'll be 2 of the same things in Disk C and D and if I try to
delete the one in Disk C I won't be able to open because it says it doesn't exist anymore. What can I do to change the downloads to Disk D only.