Remove All Values In A String Before 7th backslash - powershell

Question

I have a path inside a txt file that needs to be manipulated, something like:
C:\Jenkins\Automation\Blah\Foo\Bar\646433\Schema\test\473289_12321.ps1
C:\Jenkins\Automation\Blah\Foo\Bar\2112\Schema\QA\473289_123211.ps1
I want to replace everything before the 7th backslash and then replace it with C:\Question. I was doing something similar in Powershell via:
(Get-Content $FullEnvSQLFilePath) | #get the content
Foreach-Object {$_ -replace [Regex]::Escape($StringToReplace), "$StringReplaceValue"} | #look for the string and replace
This worked fine when I knew what the exact verbiage was to look for. We now don't know that but we will want to remove everything before the 7th backslash and replace it with a value. Reverse order works fine too. I wasn't able to have much luck in Powershell via substring doing this. Thanks.

Answer 1

One option:
$text =
'C:\Jenkins\Automation\Blah\Foo\Bar\646433\Schema\test\473289_12321.ps1',
'C:\Jenkins\Automation\Blah\Foo\Bar\2112\Schema\QA\473289_123211.ps1'
$text | foreach {'C:\Question\{0}' -f $_.split('\',8)[-1]}
C:\Question\Schema\test\473289_12321.ps1
C:\Question\Schema\QA\473289_123211.ps1

Answer 2

this ([^\\]*\\){7} regex looks 7 times for a capture group ending on a backslash and replaces it.
UPDATED: .:\\([^\\]*\\){6} regex looks for strings that look like paths starting at any root drive .:\ followed by 6 times a capture group ending on a backslash based on your comment
$text = #"
C:\Jenkins\Automation\Blah\Foo\Bar\646433\Schema\test\473289_12321.ps1
C:\Jenkins\Automation\Blah\Foo\Bar\2112\Schema\QA\473289_123211.ps1
PRINT C:\Jenkins\Automation\Blah\Foo\Baz\2112\Schema\QA\473289_123212.ps1
C:\Jenkins\Automation\Blah\Foo\quux\2112\Schema\QA\473289_123213.ps1
"#
#depending on how you get the text (single string or array)
#$text.Split("`n") | % { $_ -Replace '.:\\([^\\]*\\){6}','C:\Example\' }
$text -Replace ".:\\([^\\`n]*\\){6}","C:\Example\"
Result:
C:\Example\Schema\test\473289_12321.ps1
C:\Example\Schema\QA\473289_123211.ps1
PRINT C:\Example\Schema\QA\473289_123212.ps1
C:\Example\Schema\QA\473289_123213.ps1