Hello Chetna Srivastava,
Thank you for your answer. I have Windows 10 and the laptop is 3 months oud. Specially bought to can work with foto's. I haven't a crash report. The program is after a few clicks " not responding".
Is it possible that the problem is linked to the graphic/video card?
Because the version 5.7.1 is working with out problems.
I hope we can solve this problem but I like to order the fotograf pack after finishing this trail.
Yes, that could be due to graphics card.
Go to Lightroom Preferences > Performance > uncheck "use graphics processor" > relaunch Lightroom and check again
Additionally, refer this article : https://helpx.adobe.com/lightroom/kb/lightroom-gpu-faq.html#Troubleshoot
I have switch off the performance button. After this Lightroom CC works. But not so quick.
I will try to check my graphic card.
Thank you for your support.