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Windows 7: Can't view PNG files - where to find PNG codec?


14 Apr 2013   #1

Windows 7 Business x64
 
 
Can't view PNG files - where to find PNG codec?

Since installing the latest version of Windows Live Photo Gallery, Windows Explorer will no longer display thumbnails of PNG files. Windows Photo Viewer can no longer open PNGs either and gives the message:
Quote:
Windows Photo Viewer can't open this picture because the file appears to be damaged, corrupted, or too large.
(The files aren't corrupted and any other PNG viewer can open them okay).

I've since uninstalled WLPG, but that didn't make any difference. I think that WLPG has deleted or corrupted the PNG codec that ships with Windows. So I would like to reinstall this codec. But I don't know where I would get it from?

A Windows repair would probably reinstall it, but when I've done a repair previously it's broken all installed programs (meaning they have to be reinstalled), so I'd rather not do that. I can't use a restore point as there are no points from before I installed WLPG.

Thanks

Dave

My System SpecsSystem Spec
.

14 Apr 2013   #2

Microsoft Community Contributor Award Recipient

Win 7 Pro 64-bit
 
 

You may just need to associate the JPG file extension to open with a program you select by default.

Default Programs - Associate a File Type or Protocol

You could try to restore the Windows 7 default JPG registry entries and program associations with a clean copy from this list.

Default File Type Associations - Restore

You may have other damaged or corrupt system files that are preventing you from opening the JPG files. Try running a system file checker scan from an elevated command prompt (option two.) If problems are found, run the scan 3 times and reboot the computer immediately after each scan.

SFC /SCANNOW Command - System File Checker
My System SpecsSystem Spec
14 Apr 2013   #3

Windows 7 Business x64
 
 

Quote   Quote: Originally Posted by marsmimar View Post
You may just need to associate the JPG file extension to open with a program you select by default.

Default Programs - Associate a File Type or Protocol
I'm pretty sure it's not a filetype association problem as Windows Photo Viewer is set as the default program to open PNG files in (just it can't read them, presumably because the PNG codec has been corrupted or deleted).

Quote   Quote: Originally Posted by marsmimar View Post
You could try to restore the Windows 7 default JPG registry entries and program associations with a clean copy from this list.

Default File Type Associations - Restore
I tried that (for PNG, not JPG) and restarted my PC, but unfortunately it didn't make any difference.

Quote   Quote: Originally Posted by marsmimar View Post
You may have other damaged or corrupt system files that are preventing you from opening the JPG files. Try running a system file checker scan from an elevated command prompt (option two.) If problems are found, run the scan 3 times and reboot the computer immediately after each scan.

SFC /SCANNOW Command - System File Checker
Unfortunately it didn't find anything to fix, it says:
Quote:
Windows Resource Protection did not find any integrity violations.
Do you know where I can get the PNG codec for windows as a missing / corrupted PNG codec seems to be the most likely culprit to me?

Thanks

Dave
My System SpecsSystem Spec
.


14 Apr 2013   #4

win 7 X64 Ultimate SP1
 
 
MS Photo Viewer\Editor

If you would like to step up in functionality, there is another MS Photo viewer at this site. Just download and install.

Photo Gallery - Microsoft Windows

This will give you the ability to view your png files while you try to figure out the problem.

This next link is a no brainer but you might find some help in it.

http://support.microsoft.com/fixit/en-us
My System SpecsSystem Spec
14 Apr 2013   #5

Windows 7 Business x64
 
 

Quote   Quote: Originally Posted by HammerHead View Post
If you would like to step up in functionality, there is another MS Photo viewer at this site. Just download and install.

Photo Gallery - Microsoft Windows

This will give you the ability to view your png files while you try to figure out the problem.

This next link is a no brainer but you might find some help in it.

Microsoft Fix it Solution Center: troubleshooting software issues
Thanks for the suggestion, but WLPG is what caused the problem with PNGs not displaying in the first place. What I'm looking for really is how to get / install the PNG codec for windows?
My System SpecsSystem Spec
14 Apr 2013   #6
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

You are looking for the wrong thing. There is no such thing as a 'png codec'.
My System SpecsSystem Spec
14 Apr 2013   #7

Windows 7 Business x64
 
 

Quote   Quote: Originally Posted by whs View Post
You are looking for the wrong thing. There is no such thing as a 'png codec'.
Are you sure? This MS page talks about the "native PNG codec": PNG Format Overview (Windows)
My System SpecsSystem Spec
14 Apr 2013   #8
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

Yeah, but that is a basic function that should be available with any picture viewer. I have never heard of anybody installing a codec for that.
My System SpecsSystem Spec
14 Apr 2013   #9

Windows 7 Business x64
 
 

Quote   Quote: Originally Posted by whs View Post
Yeah, but that is a basic function that should be available with any picture viewer. I have never heard of anybody installing a codec for that.
Exactly, it should be available, but seems to have been corrupted or deleted. So I need to reinstall it. But I don't know where to get it from?
My System SpecsSystem Spec
14 Apr 2013   #10
Microsoft MVP

Windows 7 Ultimate X64 SP1
 
 

Have you tried a System Restore to before you first installed the WL picture viewer?
My System SpecsSystem Spec
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 Can't view PNG files - where to find PNG codec?




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