Since last VSCode version there was a popup asking me if I want to allow Git to open. Well I allowed this and now every time I try to open the integrated terminal the Git Shell opens externally and closes the integrated terminal.
My user config:
"terminal.integrated.shell.windows": "C:\\WINDOWS\\Sysnative\\WindowsPowerShell\\v1.0\\powershell.exe"
But it doesn't help because git is already running.
I want to open powershell instead and have git shell inside of VSCode as it was before. How can I achieve this?
UPDATE:
I run git config -l --show-origin as VonC suggested: 
file:"C:\\ProgramData/Git/config"       core.symlinks=false
file:"C:\\ProgramData/Git/config"       core.autocrlf=true
file:"C:\\ProgramData/Git/config"       core.fscache=true
file:"C:\\ProgramData/Git/config"       color.diff=auto
file:"C:\\ProgramData/Git/config"       color.status=auto
file:"C:\\ProgramData/Git/config"       color.branch=auto
file:"C:\\ProgramData/Git/config"       color.interactive=true
file:"C:\\ProgramData/Git/config"       help.format=html
file:"C:\\ProgramData/Git/config"       http.sslcainfo=D:/TOOLS/Git/mingw64/ssl/certs/ca-bundle.crt
file:"C:\\ProgramData/Git/config"       diff.astextplain.textconv=astextplain
file:"C:\\ProgramData/Git/config"       rebase.autosquash=true
file:"D:\\TOOLS\\Git\\mingw64/etc/gitconfig"    credential.helper=manager
file:C:/Users/myusername/.gitconfig  filter.lfs.clean=git-lfs clean -- %f
file:C:/Users/myusername/.gitconfig  filter.lfs.smudge=git-lfs smudge -- %f
file:C:/Users/myusername/.gitconfig  filter.lfs.process=git-lfs filter-process
file:C:/Users/myusername/.gitconfig  filter.lfs.required=true
file:C:/Users/myusername/.gitconfig  user.name=MYName
file:C:/Users/myusername/.gitconfig  user.email=some@email.com
file:.git/config        core.repositoryformatversion=0
file:.git/config        core.filemode=false
file:.git/config        core.bare=false
file:.git/config        core.logallrefupdates=true
file:.git/config        core.symlinks=false
file:.git/config        core.ignorecase=true
file:.git/config        remote.origin.url=https://github.com/MyProject/my-project.git
file:.git/config        remote.origin.fetch=+refs/heads/*:refs/remotes/origin/*
file:.git/config        branch.master.remote=origin
file:.git/config        branch.master.merge=refs/heads/master
file:.git/config        branch.routing.remote=origin
file:.git/config        branch.routing.merge=refs/heads/routing
My VScode user settings:
"php.validate.executablePath": "D:/TOOLS/xampp7/php/php.exe",
"php.suggest.basic": false,
"window.zoomLevel": 0,
"workbench.colorTheme": "Monokai",
"workbench.iconTheme": "vs-seti",
"git.path": "D:/TOOLS/Git/cmd/git.exe",
// A glob pattern that defines files and folders to exclude while listing annotations
  "todohighlight.exclude": "{**/node_modules/**,**/bower_components/**,**/bower/**,**/libs/**,**/vendor/**,**/dist/**,**/build/**,**/.vscode/**,**/_output/**,**/*.min.*,**/*.map}",
  "git.autofetch": true,
  "git.confirmSync": false,
  "git.enableSmartCommit": true,
  "explorer.confirmDelete": false,
  "terminal.integrated.shell.windows": "C:\\WINDOWS\\Sysnative\\WindowsPowerShell\\v1.0\\powershell.exe",
  "todo.colors.tag": "#967848",
  "todo.colors.code": "#fbf5cb",
Default settings with the git keyword:
  "projectManager.git.baseFolders": [],
  "projectManager.git.maxDepthRecursion": 4,
  "git.autofetch": false,
  "git.autorefresh": true,
  "git.checkoutType": "all",
  "git.confirmSync": true,
  "git.countBadge": "all",
  "git.decorations.enabled": true,
  "git.defaultCloneDirectory": null,
  "git.enableCommitSigning": false,
  "git.enabled": true,
  "git.enableSmartCommit": false,
  "git.ignoreLegacyWarning": false,
  "git.ignoreLimitWarning": false,
  "git.ignoreMissingGitWarning": false,
  "git.path": null,
 
     
     
    