10 GIT strings erased 8Gb from my computer - How to return them?

I am new to GIT and did not know how powerful this program is ... I deleted 8 Gb from several commands.
As far as I remember, I typed the following lines:

$git config --global user.name "my name"
$git config --global user.email "my email"
$git add *.c
$git commit -m
$git status

then I saw a lot of files being tracked and not being tracked, and I tried to delete them (from git). I did not know that I would delete them from the PC. So I did the following:

$git rm
$git rm --cached *.c

so I deleted all the monitored files. Therefore, I continued:

$git clean -f
$git clean -f -d
$git clean -f -x
$git clean -d -x -n

in this way I deleted some of the unprocessed files, those that were not used by the system (I use windows). And now this is what I have:

$git status
On branch master
Initial commit
Untracked files:
 (use "git add <file>..." to include in what will be commited)
 .gitconfig
 AppData/
 Desktop/
 Favourites/
 NTUSER.DAT
 NTUSER.DAT{some characters and numbers}
 ntuser.dat.LOG1
 ntuser.dat.LOG

$git checkout
fatal: You are on a branch yet to be born

I may have used more commands, but I donโ€™t remember! I just want to restore old files and I will stop using this great GIT software.

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1

, . , , . "git clean":

git -clean -

, git-clean , . Git , git clean - , -d, , -x, , -f.

, Git, *.c, .

rm -rf * del /s *.* Windows. .

.

, , , - Windows .

" "

"untracked file" - , Git. , , , Git, , . Git, , Git.

-f

-f/--force , " , , ". -f , , , .

, git rm -f . git rm , . -f , git rm.

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