When to delete lightroom 3 after installing 4

when do you delete lightroom 3? Before or after installing lightroom 4 upgrade? What is the best way to do it?

Other than saving a little space thre's no need to delete Lr3. However, if you really must then simply drag the application to the trash (Mac) or run the uninstaller (Windows). Either method will only remove the applicaion whilst leaving catalogs, presets, etc etc behind for use in Lr4.

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I've had Yosemite for some time and bought/installed PSE 13 afterwards.
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Environment variable got deleted automatically after installing and updating Mozilla Firefox

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I just got my new Nano yesterday. I downloaded and installed the latest version fine, but when I try to run the app I get the the patented Windows error:
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replying to Jkie
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Why has my library deleted everything after installing 7.6 upgrade?

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I can't get the Firefox Disk Image to go away. I delete it after install, but everytime I open the program the program asks to be installed again. Help?

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Hi there,
It sounds like something may have happened between your battery and your phone which is preventing it from loading the software correctly. If you have access to another battery, see if that works in your phone, but if not, I'm afraid you may need to reload the OS on your device. To do that, simply follow the steps in the following link and you should be able to get back up and running:
http://supportforums.blackberry.com/t5/BlackBerry-Device-Software/How-To-Reload-Your-Operating-Syste...
I hope this info helps, but feel free to ask if you have any questions or if you have any problems.
If you want to thank someone for their comment, do so by clicking the Thumbs Up icon.
If your issue is resolved, don't forget to click the Solution button on the resolution!

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I think I'm having an "a-ha!" moment thanks to doug38.
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How Do I Update Adobe Lightroom After installing Trial Version?

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Hi DarylGS
Please refer : https://blogs.adobe.com/richardcurtis/?p=1192
and
http://prodesigntools.com/lightroom-5-ddl-comparison-vs-lr4.html

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Getting the same problem here..
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Thank You!

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Help ....Error message when trying to open itunes 11 after installing..cant solve it !!!

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...iTunes.exe - Bad Image ...iTunes c:\Program Files(x86)\Common Files\Apple Apple Application Support\CoreADI.dll is not designed to run on Windows or it contains an error .....
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Re: I recently updated to vista service pack 2 and I updated to itunes 10.2.1 and ever

When to delete lightroom 3 after installing 4

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