Files cannot access because they are used by another process

Question

I am trying to delete some files in:C:\inetpub\wwwroot\my_site\Under my_site, there are many files and folders, including bin folders which has some .dll files. As soon as I run the script, I get an error message that some of the .dll files cannot be accessed because they are being used by another process, and on some dlls, I get a permission denied error.I don't know what the problem is. I am using the following script, which works perfect for any other folders, but not for the one I am trying to delete. $content = get-childitem 'C:\Backups\my_site'
$sortedContent = $content | Sort-Object LastWriteTime -Descending
write-host "This is the list of all the backups for my_site :"
$count = 1
foreach ($item in $sortedContent)
Write-Host ("{0}: {1}" -f $count, $item.Name)
$count++
# 2.Take input from user
$itemNumber = Read-Host "Please select which backup you want to restore"
$confirmation = Read-Host "Are you Sure You Want To Proceed:"
# 2.Take input from user
if ($confirmation -eq 'y') {
# 3. BACKUP script
./bacup_mysite.ps1
# 3. BACKUP
# 4. DELETE CONTENTS OF my_site
get-childitem "C:\inetpub\wwwroot\my_site\" -recurse | % {
remove-item $_.FullName -recurse -force
# 4. DELETE CONTENTS OF APP
# 5. COPY CONTENTS OF ZIP INTO APP DIRECTORY
$itemNumber = $itemNumber -1
if($sortedContent[$itemNumber].PSIsContainer -eq $true)
$src = $sortedContent[$itemNumber].FullName + "\"
$WebzipPath = $src + "my_site.zip"
$Date = Get-Date
$folder_date = $Date.ToString("yyyy-MM-dd_HHmm")
$tempPath = 'C:\_Temp\Restore\my_site_restore_' + $folder_date
if (!(Test-Path -path $tempPath))
New-Item $tempPath -type directory
./Library/unzip.ps1 $WebzipPath $tempPath
$tempPathWeb = $tempPath + "/my_site/*"
Copy-Item -Path $tempPat -Destination 'C:\inetpub\wwwroot\my_site\' -Recurse -
force

Answer 1

 am using a script which backups the folders and than in the next block tries to delete those folder from there original location.This is the script
if ($confirmation -eq 'y') {
# 3. BACKUP script
./bakup_mysite.ps1
#If i put a Read-Host here it does stop and than ask user to press any key and than it
deletes the next block, but i want to put a wait so user does not have to press any key
and everything happens automatically, # 3. BACKUP
# 4. DELETE CONTENTS OF my_site
get-childitem "C:\inetpub\wwwroot\my_site\" -recurse | % {
remove-item $_.FullName -recurse -force
}I would like the backup to finish first and than delete the original files, because if i use the above script while backup up some files gets locked and at the same time the next block gets executed and it tries to delete the files thats why i would like to put a wait for backup to finish
Check your assumptions.  How do you know that backup is the only process that might have a lock on those files?
[string](0..33|%{[char][int](46+("686552495351636652556262185355647068516270555358646562655775 0645570").substring(($_*2),2))})-replace " "