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If you skip analysis, you won't see an updated Last run time in the Optimize Drives app. Because of that, the Last run time can be up to a month old.
You might find that scheduled task hasn't defragmented all volumes. This is typically because:
The process won't wake the computer to run.
The computer isn't plugged in. The process won't run if the computer is running on battery power.
The computer started back up (resumed from idle).
del
Deletes one or more files. This command performs the same actions as the erase command.
The del command can also run from the Windows Recovery Console, using different parameters. For more information, see Windows Recovery Environment (WinRE).
Warning
If you use del to delete a file from your disk, you can't retrieve it.
Syntax
del [/p] [/f] [/s] [/q] [/a[:]<attributes>] <names>
erase [/p] [/f] [/s] [/q] [/a[:]<attributes>] <names>
Parameters
Parameter
Description
<names>
Specifies a list of one or more files or directories. Wildcards may be used to delete multiple files. If a directory is specified, all files within the directory will be deleted.
/p
Prompts for confirmation before deleting the specified file.
/f
Forces deletion of read-only files.
/s
Deletes specified files from the current directory and all subdirectories. Displays the names of the files as they are being deleted.
/q
Specifies quiet mode. You are not prompted for delete confirmation.
/a[:]<attributes>
Deletes files based on the following file attributes:r Read-only filesh Hidden filesi Not content indexed filess System filesa Files ready for archivingl Reparse points- Used as a prefix meaning 'not'.
/?
Displays help at the command prompt.
<names>
<attributes>
Remarks
If you use the del /p command, you'll see the following message:
del /p
FileName, Delete (Y/N)?
FileName, Delete (Y/N)?
To confirm the deletion, press Y. To cancel the deletion and to display the next file name (if you specified a group of files), press N. To stop the del command, press CTRL+C.
If you disable command extension, the /s parameter will display the names of any files that weren't found ,instead of displaying the names of files that are being deleted.
If you specify specific folders in the <names> parameter, all of the included files will also be deleted. For example, if you want to delete all of the files in the \work folder, type:
<names>
del \work
You can use wildcards (* and ?) to delete more than one file at a time. However, to avoid deleting files unintentionally, you should use wildcards cautiously. For example, if you type the following command:
del *.*
The del command displays the following prompt:
Are you sure (Y/N)?
Are you sure (Y/N)?
To delete all of the files in the current directory, press Y and then press ENTER. To cancel the deletion, press N and then press ENTER.
Note
Before you use wildcard characters with the del command, use the same wildcard characters with the dir command to list all the files that will be deleted.
Examples
To delete all the files in a folder named Test on drive C, type either of the following:
del c:\test
del c:\test\*.*
To delete all the files in a folder where the folder has a space in its name, the full path needs to be wrapped in double quotes. Type either of the following:
del "c:\test folder\"
del "c:\test folder\*.*"
To delete all files with the .bat file name extension from the current directory, type:
del *.bat
To delete all read-only files in the current directory, type:
del /a:r *.*
delete disk
Deletes a missing dynamic disk from the list of disks.
Note
For detailed instructions about how to use this command, see Remove a Missing Dynamic Disk.
Syntax
delete disk [noerr] [override]
Parameters
Parameter
Description