Utility for Deleting Invalid Files
from the author of
- Purge Cache, Cookies and Tracks for Internet Explorer
DelinvFile 5.03 supports Win-7
thru Win-10 [32 & 64 bit]
This limited trial provides for three (3)
free deletes or renames.
The price for the single-user license
for DelinvFile is $31.95 (USD).
NOTICE - a Windows 10
default setting may conflict with DelinvFile functions.
Please see the Short Filenames note below related
to this registry setting.
Beginning with version 5.01, DelinvFile includes UniCode logic to enable processing of file and folder names
containing characters from other languages and includes Bulk
Delete, Multi-select and a new method for
displaying error messages.
Even though DelinvFile may not have handled your invalid files in the past, give
the new version a try.
Windows allows the creation of file names and folder names
that can not be deleted or renamed via
Windows Explorer. This includes names with invalid characters and
names that are too long.
The current version of DelinvFile includes a function to
scan for invalid names and too-long names.
DelinvFile has been converted back to a limited trial.
The limited trial provides for three (3) free deletes or renames.
However, this includes the capability for testing to verify that the program can access and process your problem files and folders.
With this change, registration now includes a 30-day
money-back guarantee to accommodate the situation in which DelinvFile
fails to delete your problem files. DelinvFile
has a function for reporting such a problem when requesting a refund.
Some windows functions allow creation of folder paths such that
the combined path + filename lengths exceed the maximum permitted length.
The current limit is 260 characters. In other words, windows can create
names that are too long for the standard Windows Explorer to delete. The
function also attempts to identify file and folder names with invalid characters
which would make them un-removable via Windows Explorer.
NOTE - DelinvFile
does not delete or rename in-use (Locked) files. However, DelinvFile
does provide functions for deleting or renaming files and folders at the next
Too many invalid names to handle manually?
Have thousands of files to import to SharePoint?
See SharePrep below for renaming
and truncation of names.
This page describes "DelinvFile.exe"
which is a Utility that
you can use to delete data files that you have not been able to delete using the
normal Windows Delete function. You could use the phrase 'delete
undeletable files' to describe the program.
Most file delete problems can be
overcome by using a DOS or Command window to:
1. Execute a Delete
command referencing the Short FileName or
2. Execute a Delete
command for the UNC form of the FileName.
However, it is quite difficult to
manually enter a lengthy filename without error. Most of the relatively new
computer users are not comfortable using DOS commands.
The current version of DelinvFile is 5.03.
DelinvFile supports Win-7 thru Win-10 [32 & 64 bit] systems
UNC is an acronym for Universal Naming
Convention. By example, the Filename "C:\temp\test.doc"
would be represented by "\\?\C:\temp\test.doc".
Short Filenames are the shortened
version of Long Filenames that are created to fit the 8.3 format. That is, the
name is only 8 characters and the extension is only 3 characters. The
system can maintain both in its directory structure.
By default, Windows 10 is set to not create Short Filenames.
This saves a small portion of disk space. Earlier versions of Windows were set to create Short Filenames.
makes use of the Short Filenames for its operations, we are asking
our customers to change the Short Filenames registry setting when
upgrading to Windows 10.
We are providing a free utility program "Reset83.exe" for
changing the necessary registry setting.
[ Reset83.exe ]
Reset83.exe does not require an install. You may
execute it directly from our website or download to your computer and
execute it from there.
Beginning with version 3.01, DelinvFile includes a function to
scanning for invalid names (file or folder) and too-long names.
DelinvFile was converted to a commercial version with the
release of version 2.01.
Site Licenses or Multiple-use Licenses for businesses are
also available upon request via the vendor. An additional 25%
discount is available for Site Licenses for educational institutions,
public libraries and government facilities. [Request
"DelinvFile.exe" is a Windows program
that provides a convenient User Interface for selecting the file that you need
to delete and provides for a choice of two delete methods.
You use the standard controls for Drives, Folders,
and Files to navigate to the Folder and Select the file to be deleted.
Note that Filenames are
displayed in both forms - Short Filename and Long Filename as a convenience for
Once a Filename is selected (highlighted), you
can click the Delete button to try to delete the file.
The current version of DelinvFile combines both the ShortName
functions with the UNC functions. That is, for Delete, a Delete via
ShortName is tried. Should that fail, a Delete via UNC name is
Similarly, for Rename, a Rename via ShortName is tried and a Rename via
UNC name is tried if necessary.
Announcement - "SharePrep"
released for Sharepoint
a utility program for SharePoint administrators
to correct file and folder names
in preparation for importing data into Microsoft's SharePoint or
to Microsoft's OneDrive for Business.
The file and folder names within SharePoint and OneDrive have more
restrictions than for normal Windows operation.
SharePrep has scan,
rename and truncation functions to assist in the preparation project.
Abbreviation of common words in file names is supported.
See - http://www.purgeie.com/shareprep
SharePrep is not just for SharePoint. Some are using
SharePrep to bulk rename files and folders.
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Copyright © 2004-2017. All rights reserved.
Revised: August 14, 2017