Thanks for the replies. On my C: drive I have free 53.9GB of 117Gb. I did originally have my Lightroom Library on this drive and then it was quite full. I then moved it onto my F: drive and there I have 292GB free of 931GB (internal hard drive). When I moved the Library over there was no change to the symptom. I have now disabled the Graphic Card and Purged the Cache but no improvement and restarted Lightroom. i already had my Cache set to 20Gb. I did try these tests with Lightroom 7.1 but this never improved the situation. My issue seems to be predomanately in the Library module. If I click on an image in the film strip or the slider in the Grid view or Folder slider it either takes 5-8 seconds to transition or it comes up with Not Responding and the Windows blue circle appears and sometimes at the same time the screen goes white but partially transparent the appropriate slider/image then displays again after 5-8 seconds. If I go into the Develop module then every image I click on in the Filmstrip comes up as I click it in the main display. This used to be the same in the Library module but not any more, unfortunately I cannot remember when it broke. I do not have any issue with any of my other application including Photoshop it appears to only be the Lightroom Library module that is basically unuseable. Lightroom Classic version: 7.2 [ 1156743 ] License: Creative Cloud Language setting: en Operating system: Windows 10 - Business Edition Version: 10.0.16299 Application architecture: x64 System architecture: x64 Logical processor count: 8 Processor speed: 2.5 GHz Built-in memory: 16292.9 MB Real memory available to Lightroom: 16292.9 MB Real memory used by Lightroom: 2657.0 MB (16.3%) Virtual memory used by Lightroom: 2984.8 MB GDI objects count: 638 USER objects count: 2736 Process handles count: 1530 Memory cache size: 1068.6MB Internal Camera Raw revision: 894 Maximum thread count used by Camera Raw: 5 Camera Raw SIMD optimization: SSE2,AVX,AVX2 Camera Raw virtual memory: 1023MB / 8146MB (12%) Camera Raw real memory: 1024MB / 16292MB (6%) System DPI setting: 96 DPI Desktop composition enabled: Yes Displays: 1) 1920x1080, 2) 1680x1050 Input types: Multitouch: No, Integrated touch: No, Integrated pen: No, External touch: No, External pen: No, Keyboard: No Graphics Processor Info: DirectX: NVIDIA GeForce GTX 960M (22.21.13.8541) Application folder: C:\Program Files\Adobe\Adobe Lightroom Classic CC Library Path: F:\Lightroom library\Lightroom_library-2-2-2-2\Lightroom_library-2-2-2-2.lrcat Settings Folder: C:\Users\Dennis\AppData\Roaming\Adobe\Lightroom Installed Plugins: 1) AdobeStock 2) Canon Tether Plugin 3) Facebook 4) Flickr 5) HDR Efex Pro 2 6) Helicon Focus Export 7) Nikon Tether Plugin
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