powershell wait-job doesn't wait - powershell

Question

I'm trying to get a set instructions to wait until a process is finished before they start but I keep having the variables try to run straight after.
I would try a wait() but I cant know how long the scan will take.
#Variables
$logPath = "C:\Users\Administrator\Desktop\log.txt"
$scanPath = "C:\Users\Administrator\Desktop\scan.txt"
$repairLog = "C:\Users\Administrator\Desktop\repair.txt"
$failLog = "C:\Users\Administrator\Desktop\fail.txt"
$computer = "SERVER2012"
$CBSFileLocation = "C:\Windows\Logs\CBS\CBS.log"
$date = Get-Date
$sevenDays = New-Object System.TimeSpan 7,0,0,0,0
$repair = "Repair"
$fail = "fail"
$then = $date.Subtract($sevenDays)
#Start of Code:
$EventLog = Get-EventLog -LogName System -ComputerName $computer -After $then -Before $date -EntryType Error | Out-File $logPath
Start-Job -Name SFC {Start-Process sfc /scannow}
#I want the wait/suspend here.
Wait-Job -Name SFC {
$ScanX = Get-Content $CBSFileLocation
$ScanX | Out-File $scanPath
Select-String -Path $scanPath -Pattern $repair | Out-File $repairLog
Select-String -Path $scanPath -Pattern $fail | Out-File $failLog
echo "Done!!"
}

Answer 1

I'm guessing you want to wait, and when SFC is ready, execute the script inside the last { ... } in your scripts.
As far as I can tell from reading the documentation for Wait-Job, there is no scriptblock parameter what would allow for this.
Instead try rearranging your code a little, like this
#Variables
$logPath = "C:\Users\Administrator\Desktop\log.txt"
$scanPath = "C:\Users\Administrator\Desktop\scan.txt"
$repairLog = "C:\Users\Administrator\Desktop\repair.txt"
$failLog = "C:\Users\Administrator\Desktop\fail.txt"
$computer = "SERVER2012"
$CBSFileLocation = "C:\Windows\Logs\CBS\CBS.log"
$date = Get-Date
$sevenDays = New-Object System.TimeSpan 7,0,0,0,0
$repair = "Repair"
$fail = "fail"
$then = $date.Subtract($sevenDays)
#Start of Code:
$EventLog = Get-EventLog -LogName System -ComputerName $computer -After $then -Before $date -EntryType Error | Out-File $logPath
#Start the job and return the prompt once the job has State Completed
Start-Job {Start-Process sfc /scannow} | Wait-Job
#These lines are executed once Wait-Job above returns the prompt
$ScanX = Get-Content $CBSFileLocation
$ScanX | Out-File $scanPath
Select-String -Path $scanPath -Pattern $repair | Out-File $repairLog
Select-String -Path $scanPath -Pattern $fail | Out-File $failLog
echo "Done!!"