#1 2023-12-06 07:21

spd
Member
Registered: 2023-12-06
Posts: 3

Changing only capitalization of filename doesn't work

It seems to be a recent Windows 'upgrade' that any simple change of a filename's case does not get applied.
I found the only work around is to give it another name then reattempt the original case change.
I don't know how to make a 2 pass rule set to get around it yet.

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#2 2023-12-06 21:07

Stefan
Moderator
From: Germany, EU
Registered: 2007-10-23
Posts: 1,161

Re: Changing only capitalization of filename doesn't work

Hi and welcome.

Please post that names (old and new) you had trouble with.

Also mention your OS version and build, and the bitness.

Which ReNamer version did you have used?



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#3 2023-12-07 08:12

spd
Member
Registered: 2023-12-06
Posts: 3

Re: Changing only capitalization of filename doesn't work

Sorry, Windows 10 Education.  version 22h2 OSbuild 19045.3693 Experience Feature pack 1000.19053.1000.0 64-bit OS and processor. Intel core.  with SSD drive and seems to be PnP driver.
Example old file name: P1060328.JPG. New file name should have been all lower case:  p1060328.jpg.  I checked the include extension box.  File name didn't change although the preview / validation step showed what it should have been correctly. I had about 18k files to change, although it didn't make a difference when trying with only 50.
I used Renamer 7.5 (date 20230325:1648).
I checked on google, some other people have had similar issues even back in 2021 - not necessarily on Renamer, but with manual amending in windows explorer.  Apparently some people don't have the problem, and some do.
It does seem to be a windows bug, not a renamer bug.

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#4 2023-12-07 18:54

den4b
Administrator
From: den4b.com
Registered: 2006-04-06
Posts: 3,442

Re: Changing only capitalization of filename doesn't work

It sounds like operating system and/or file system limitations.

For example, FAT32 file system (most commonly used on removable drives) is not case sensitive. It literally ignores case changes. The only way to make a case change in FAT32 is by making a more significant change, like adding and then removing a letter.

What file system are you working with?

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#5 2023-12-08 06:46

spd
Member
Registered: 2023-12-06
Posts: 3

Re: Changing only capitalization of filename doesn't work

File system is NTFS.  And I'm changing names on the C drive, which is the default boot drive and not an external / removeable drive.
I would think by now most automatic renaming programs would have an automatic temporary rename work-around option to help with this rather painful bug (aka MS feature).

Last edited by spd (2023-12-08 07:15)

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#6 2024-12-11 23:02

NFAToys
Member
Registered: 2024-12-11
Posts: 2

Re: Changing only capitalization of filename doesn't work

This problem also exists on Windows 11.   Simply changing case of any or all letters in a file name is rejected by the OS.  To change case of letters in a file name you must also alter the name.   This can be done by simply tacking on an additional digit or removing one from the name   I’ve added xxxx to the end of the file name, so it changes the file name case, and can then be easily removed later in a second renaming pass.

It would be very handy to add an option to the change Case feature of ReNamer to tell the program to silently add some kind of suffix to each file name, on the renaming pass.  And then do a silent removal of the suffix on a second renaming pass.

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#7 2024-12-12 20:36

den4b
Administrator
From: den4b.com
Registered: 2006-04-06
Posts: 3,442

Re: Changing only capitalization of filename doesn't work

We can't reproduce your issue on a default installation of Windows 10 and 11 with NTFS file system.

Case-only changes get applied as intended when renaming via ReNamer or File Explorer.

What is so special about your setup? Are you sure that you are using NTFS file system? Have you applied any tweaks?

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#8 2024-12-13 00:12

NFAToys
Member
Registered: 2024-12-11
Posts: 2

Re: Changing only capitalization of filename doesn't work

Yes this is Windows 11 Pro 64 bit NTFS

Here are my system specs:

OS Name	Microsoft Windows 11 Pro
Version	10.0.22631 Build 22631
Other OS Description 	Not Available
OS Manufacturer	Microsoft Corporation
System Name	GJ-LAPTOP
System Manufacturer	Dell Inc.
System Model	XPS 17 9720
System Type	x64-based PC
System SKU	0AFE
Processor	12th Gen Intel(R) Core(TM) i7-12700H, 2300 Mhz, 14 Core(s), 20 Logical Processor(s)
BIOS Version/Date	Dell Inc. 1.27.0, 8/6/2024
SMBIOS Version	3.4
Embedded Controller Version	255.255
BIOS Mode	UEFI
BaseBoard Manufacturer	Dell Inc.
BaseBoard Product	0RG82H
BaseBoard Version	A00
Platform Role	Mobile
Secure Boot State	On
PCR7 Configuration	Elevation Required to View
Windows Directory	C:\WINDOWS
System Directory	C:\WINDOWS\system32
Boot Device	\Device\HarddiskVolume1
Locale	United States
Hardware Abstraction Layer	Version = "10.0.22621.2506"
User Name	GJ-Laptop\nfato
Time Zone	Eastern Standard Time
Installed Physical Memory (RAM)	16.0 GB
Total Physical Memory	15.7 GB
Available Physical Memory	4.35 GB
Total Virtual Memory	41.7 GB
Available Virtual Memory	17.2 GB
Page File Space	26.0 GB
Page File	C:\pagefile.sys
Kernel DMA Protection	On
Virtualization-based security	Running
After asking Microsoft's A.I. -CoPilot- about this problem with Windows 11, this was the response.

"I understand how frustrating that can be! It seems to be a known issue with Windows 11. A workaround for this is to temporarily add a character to the filename, change the case, and then remove the added character in a second step. Here's how you can do it:

  • Add a Character: Rename the file and add a character (e.g., an underscore or a number) to the end of the filename. For example, if your filename is example.txt, rename it to EXAMPLE1.txt.

  • Remove the Added Character: Finally, rename the file again to remove the added character, resulting in the desired case change. Change EXAMPLE1.txt back to EXAMPLE.txt.

This two-step process tricks Windows into allowing the case change. I hope this helps! Let me know if you have any other questions or need further assistance."

Last edited by NFAToys (2024-12-13 00:17)

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