With Windows 10, Microsoft has changed a great deal about the popular operating system compared to Windows 7 and 8. Not only are various classic ad­just­ment options found in a different place, but many programs and services have also been replaced by new solutions. This includes the perennial standard app for opening and pre­sent­ing images and photos, ‘Windows Photo Viewer’. Replaced with ‘Photos’ in the current edition of Windows, it can only be re­ac­ti­vat­ed using workarounds. In the following sections, you can find out why re­ac­ti­va­tion of the old viewer might be useful and what steps are necessary to get back the old photo viewer in Windows 10.

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Windows 10 Photo Viewer: ad­van­tages compared to the ‘Photos’ app

In com­par­i­son to Windows Photo Viewer, the new ‘Photos’ app is much more than a simple photo viewing program. Unlike the classic Windows photo tool, the ap­pli­ca­tion actually offers lots of ad­di­tion­al functions and editing pos­si­bil­i­ties for your graphics, images and photos. In principle, then, ‘Photos’ is suitable for a wide range of purposes but it is also more cum­ber­some and more of a drain on computing per­for­mance than the Windows Photo Viewer. Opening an image file takes sig­nif­i­cant­ly longer as a con­se­quence.

Another dis­ad­van­tage of the new Windows image viewer is that ‘Photos’ does not provide complete support for color man­age­ment. The mapping of input color spaces on the monitor, which is fun­da­men­tal for an accurate rep­re­sen­ta­tion of images, graphics and photos on the monitor, is, therefore, limited. The old photo viewer doesn’t have this problem.

Windows 10: Re­ac­ti­vat­ing the old photo viewer – step by step

In Windows 10, the Photo Viewer has been of­fi­cial­ly replaced by the ‘Photos’ app and is not available as a standard option to open image files. With a few small changes in the Registry, though, the program for viewing images can also be activated in Microsoft’s latest operating system. All you require to do so are the editor regedit and ad­min­is­tra­tor priv­i­leges.

Note

Incorrect settings in the Windows Registry can have a negative effect on the operating system’s per­for­mance. Beyond the steps set out in the following manual, you should only attempt to interfere with it if you have the necessary expertise.

The process to activate the old Photo Viewer in Windows 10 works as follows:

Step 1: Open the Windows search function via the start menu (Windows icon), type the term ‘regedit’ or ‘registry editor’, and select the option ‘Run as ad­min­is­tra­tor’. In some cases, it may be necessary to right-click on the editor icon.

Image: Windows 10: Search result for ‘regedit’
Simply click on the registry editor icon and choose the option ‘Open’, then start this in normal mode rather than in ad­min­is­tra­tor mode.

Step 2: Enter the ad­min­is­tra­tor cre­den­tials if you are prompted to provide them and confirm your entry with ‘OK’. Regedit will open and you will see the current structure of your Windows in­stal­la­tion's registry database. The next step is to navigate to the path ‘HKEY_LOCAL_MACHINE’ → ‘SOFTWARE’ → ‘Microsoft’ → ‘Windows Photo Viewer’ → ‘Ca­pa­bil­i­ties’ → ‘File­As­so­ci­a­tions’:

Image: Registry Editor in Windows 10
You can find the entry for the Windows Photo Viewer app in the registry database.

Step 3: Open the final entry, ‘File­As­so­ci­a­tions’ by left-clicking on it. In the menu window on the right, you will now see a list of registry keys assigned to this entry. In the case of the image viewing program, these will be the file formats for Windows Photo Viewer, which should be se­lec­table as a re­pro­ducible option. For all formats that are to be supported, you now need to create a new entry by right-clicking on the empty space and selecting ‘String Value’ under ‘New’:

Image: Windows 10 Registry: new ‘String’ entry
Inserting a new regedit ‘String’ entry.

Step 4: You now need to give the new string the name of the re­spec­tive format – for example .jpg, .svg, .png or .bmp. Then, right-click on the re­spec­tive entry and select 'Modify’:

Image: Adjusting values in the Windows 10 Registry
Choose keys and values in the Windows Registry by right-clicking in order to be able to rename, edit or delete them.

Step 5: Now enter the following line into the entry field 'Value’ in each case:

PhotoViewer.FileAssoc.Tiff

To finish, confirm this value by clicking ‘OK’.

Image: Menu to edit the string in the Windows Registry
Windows 10 Registry: Menu ‘Edit string’.

Step 6: Close the Registry and right-click on any image (in this case a .jpg file) that you would like to open with Windows Photo Viewer. In the menu that pops up, choose ‘Open with’ and then ‘Choose another app’. Now search in the list for the entry 'Windows Photo Viewer’ and select it. Tick the option ‘Always use this app to open .jpg files’ so that Windows 10 uses the old photo viewer as the standard ap­pli­ca­tion for viewing images:

Image: Windows 10 dialog ‘How do you want to open this file?’
In this example, Windows Photo Viewer is des­ig­nat­ed as the standard app to open all .jpg files. You will need to repeat this step to au­to­mat­i­cal­ly open other formats, for example, .png.
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