Windows 10: Refurbished Dell laptop with large "image" file

I just purchased a refurbished Dell Latitude E5450. In Settings / System / Storage, I see "Other", Manage other large folders, and 5.74 GB being used. Clicking on "Other", there is a path C:\images . Clicking on that, I go into File Explorer, where I see one file. The file is named, image_BAK.wim. The "Date modified" is 10/24/2019. The "Size" is 5,023,571 KB. Since this is a refurbished laptop, I am thinking this is possibly an image/backup from whichever company originaly owned the laptop. When I got the laptop yesterday, I immediately ran "Wind

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DELL Laptop “System Files” storage is very large

I'll try to upload photos again: -

DELL is the top picture and my desktop is the other.

 

Microsoft Login Credentials on Refurbished Dell Laptop

I recently bought a certified refurbished Dell Laptop with Windows Pro. I turned the Dell on for the first time and went through the Set-Up process with Cortana. I did not add my Microsoft Login credentials during set-up and skipped that step completely
because I don't have a Microsoft account.

Then once set up was complete, the Dell did an update and booted up.

Then the computer goes straight to the login screen, like it normally would once I make an account on the computer, and now will not allow me to log in to the computer at all.

It has Other User (not my name), then a space to type your user name and another space to type the password. There is another sign in option that offers a phone # or email address with a password.

Since I didn't add my Microsoft login credentials during set-up, I'm not sure why it's asking me for these now if I didn't set one up in the first place.

I talked to a Dell Tech Support person and since it's not a hardware issue, they told me to talk to Microsoft. I talked to Microsoft and the Tech Support told me I had to Clean Install Windows again...Windows was already installed (that's how I was setting
up the computer when I first turned it on).

Anyways, should I return this refurbished Dell or is there something I can do?

 

[HELP]Image recovery issues

Guys i am trying to fix my cousins Asus Eee netbook. It has a backup image file that is partitioned on the hard drive but when I go to use it the app will run through a few steps and stop. It is running Vista . Any suggestions?