Access denied when counting the volume of pictures in the Windows directory, although there were none before, how to fix it?

Question

PowerShell

You need to get the total volume of all bmp, jpg files in the Winodws directory and all its subdirectories.

$sum=0; ForEach ($f in dir C:\Windows\* -include *.bmp, *.jpg -recurse){$sum+=$f.length} $sum

It used to work, but now there are a lot of access denials and it displays 0, even if I add the pictures myself to the Windows directory.

spoiler

Answer 1

See what permissions are on the files, from which user you are running the script.

Answer 2

Run script as admin.

Answer 3

Using Adjusting Token Privileges in Powershell , you increase administrator privileges and count without errors:

Set-ExecutionPolicy Unrestricted Process
Import-Module .\Set-LHSTokenPrivilege.ps1
Set-LHSTokenPrivilege SeBackupPrivilege
Set-LHSTokenPrivilege SeRestorePrivilege
$sum=0; ForEach ($f in dir C:\Windows\* -include *.bmp, *.jpg -recurse){$sum+=$f.length} $sum

После добавления в исключения ваш скрипт всё подсчитал.
Если dir /q C:\Windows\System32\LogFiles\WMI показывает, у папки нет владельца, то есть

14.05.2019  13:10    <DIR>          NT AUTHORITY\СИСТЕМА   .
14.05.2019  13:10    <DIR>          NT AUTHORITY\СИСТЕМА   ..
11.05.2019  15:20    <DIR>          ...                    RtBackup

надо его восстановить

takeown /F C:\Windows\System32\LogFiles\WMI\RtBackup /A