Ligthroom 6 startet nicht mehr richtig

You say crash... did you have to wipe your hard drive and do a fresh install of Windows?

Is your Windows completely updated?

Is your video driver updated?

Do not count on Windows to be fully up to date when it comes to device drivers
Go to the vendor site to be sure you have an updated driver for your graphic adapter
.
nVidia Driver Downloads https://www.nvidia.com/Download/index.aspx?lang=en-us
-for all Adobe programs use the STUDIO driver, not the GAMING driver
-To achieve the highest level of reliability, Studio Drivers undergo extensive
-testing against multi-app creator workflows and multiple revisions of the top
-creative applications from Adobe to Autodesk and beyond
.
If you have a laptop you MAY also need to check for a laptop specific nVidia driver
-SOME laptops require an approved driver from the laptop company, not nVidia
.
AMD/ATI Driver https://www.amd.com/en/support
.
Intel https://downloadcenter.intel.com/product/211969/Intel-HD-Graphics-Family
https://www.askwoody.com/newsletter/free-edition-working-with-the-intel-driver-support-assistant/

you can try uninstalling

cleaning per http://www.adobe.com/support/contact/cscleanertool.html

reinstall

that's a bit of a long shot because lightroom 6 isn't part of cc.

you can also try removing your lr 6 preferences, https://helpx.adobe.com/lightroom-classic/kb/preference-file-and-other-file-locations.html

in the future, to find the best place to post your message, use the list here, https://community.adobe.com/

p.s. i don't think the adobe website, and forums in particular, are easy to navigate, so don't spend a lot of time searching that forum list. do your best and we'll move the post (like this one has already been moved) if it helps you get responses.

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