"I always thought that the displayed preview was the result of applying the current settings to the base data always in the same order (this is why using the various development settings in a given order is not that important - although the suggested top-down order is rather logical)." " but the order does matter." That can't be right. Consider that if that were true, one could create two different appearances from identical images with same settings but different based solely on applied slider order! I think the key here is to understand that Adobe has placed the slider/workflow in the order that best leads you to good settings quickly/easily. That is, the earlier sliders do more heavy lifting to get you in the ballpark correctly and things "narrow" as you go. Often after setting tone curve I return to basic settings to "tidy up" and find that if I move anything a hair, it's worse. Props to Adobe there. Having said all that... I'm one who's struggled to get the contrast I want in the shadows or highlights, wishing for blinking guiding lights to help me balance the best combination of two different sliders... ... View more

On the (very slim?) chance that there's something "going on" with Lightroom, RAW files showing up grainy in Photoshop at bottom post a report of a cache setting fixing "over-graininess". ... View more

For fun, I went here: Canon EOS 80D Noise Test Results and played with high ISO RAW vs jpg.  The UI is a little quirky, but I think you can see similar results to what you're showing us. I think Per is right, that the Microsoft viewer uses the jpg embedded by Canon.  I think the real question is whether you can get RAW results close to what (I assume) is the 80D's aggressive Noise Reduction in the jpg by using LR's noise reduction tools. This link Canon 80D colour noise reduction from RAW  addresses some issues similar to, but not the same as yours. Note the discussion regarding Adobe Standard vs Canon emulation camera profiles for RAW processing - that Adobe Standard appears more aggressive. I don't think you have a problem, but that you're seeing an aggressive NR applied to a jpg as opposed to little applied to the RAW.  I took your 0700 RAW image and made no adjustment other than NR detail = 100 and Luminance = 40 and got results very similar to what I saw in the third jpg image. So to my mind, you're seeing high-ISO RAW with high noise because there's very little NR applied - which is to be expected. When you add NR in LR it looks much better. ... View more

If you could upload the image to Dropbox or similar, others might be able to see what you're doing. Also, LR version number. As per Per <g> suspicion that switching cameras and an unfamiliarity might be be an issue - it looks like something is over sharpened. ... View more

Before you do anything, back up your catalog. How to back up catalogs in Lightroom​ Making a new E: partition won't buy you anything, you have to untangle the mess caused by the synch: "The Dangers of Synchronized Folders" https://www.lightroomqueen.com/synchronize-folder/   If I'm understanding correctly, 16k images of your 42k were seen as missing, and so "duplicate" entries for their new location were put into the catalog.  I'm not sure why it was only 16k.  I think your next step is to try to intelligently ascertain whether all your files were restored retaining the old file structure, or whether they became divided. Hopefully with more information we can see if you can delete these duplicate entries easily, and then easily relink your previous good catalog entries by pointing to the topmost pertinent folder in the catalog Lightroom – Relinking Folders on an External Drive « Julieanne Kost's Blog (ignore "external drive" in that discussion - your C: drive is your new "external drive, if that makes sense) I know this is confusing, but if you can sort out and easily remove the duplicates from the catalog, you might be halfway home. Also, I'd wait for others here to confirm my approach or suggest something better/easier. ... View more

If I'm reading this all correctly, your desktop Photoshop renders incorrectly the same file that is rendered correctly in the other three permutation, Lightroom desktop and Lightroom & Photoshop on your laptop.  Assuming all Photoshop settings the same on both computers and exact same ACR on both, we have a head-scratcher (as if you didn't know). I understand your interest in sorting it out. A reinstall of Photoshop desktop will either fix it and you might never know what the issue was, but could chalk it up to a ghost in the machine -or- you end up with the same discrepancy and back to square one. Through all this there's the added possible confounding issue of xmp sidecar. You might try eliminating this as a factor. I'm just trying to summarize to see if I have it all right - the only possible conclusion I can see is something different in Photoshop, either settings or broken. Hard for me to see where anything Win10 would alter the actual file contents, which seems to be the case. Additionally, if a reinstall doesnt change things, perhaps some of us who are presumably on all the latest greatest versions can see if we can replicate using the same files. ... View more

This is only very "hunchy" - but I seem to recall a problem with Camera Profile differences between PS Smart Object and Lightroom, for the life of me I don't remember the conditions, but you might try turning off in both images, applying Adobe standard in both, etc. Very fuzzy in my head, but not too hard to check! ... View more

"If you have never paid for Lightroom, and the free trial ends, I don't think Lightroom will function at all." - is directly contradicted in the link John Waller gave in (2.) http://thedambook.com/lightroom-never-fully-expires/ : "You can download the trial version of Lightroom and, at the end of the trial period, it mostly continues to function. Free." Can someone authoritatively confirm or deny? ... View more

Just a hunch, maybe a reboot freed the .lock file from the clutches of a background process. ... View more

Ed, sorry I didn't see this as a hanging issue. https://www.lightroomqueen.com/articles-page/how-do-i-reset-lightrooms-preferences/   "In Lightroom CC/6, there’s a simple automated way of doing it—just hold down Alt and Shift (Windows) / Opt and Shift (Mac) while opening Lightroom and it’ll ask whether to reset the preferences. The timing is crucial—hold them down while clicking/double-clicking on the app/shortcut." ... View more

Roger, I'm just onlooking on this one, but I wanted to give you a heads up that many Internet sites seed error messages into Google to try to get you to purchase their registry clean-up software, and that rarely solves problems. ... View more

I'm not an Imac user, but if LR appears to work on your new user, try copying catalog file to your new user How to create and manage catalogs in Photoshop Lightroom (section on copy/move). Depending on location of images, you might have to copy them to new user too, and relink Re-linking Files and Folders in Lightroom « Julieanne Kost's Blog .  Obviously, it would be better to find out what the basic problem is - offering this because desperate situation. I'm assuming you tried reinstalling LR6. ... View more

What version Adobe Camera RAW in "About"? Has to be 9.1 (newest is 9.10.1)  Camera Raw installer for Adobe Photoshop CC and CS6 ... View more

Marking posts as correct or helpful on the Adobe forums ... View more

Take two images alleged to be duplicates of one another. For each, right click, then "Show in Explorer" - are the both the exact same file in the exact same folder?  That might help get to an understanding of what's going on. ... View more

Weird issue. If you dont see anything in event viewer, maybe some bad disk is hanging it up, maybe try chkdsk? https://windowsinstructed.com/run-chkdsk-windows/ https://windowsinstructed.com/run-chkdsk-windows/ ... View more

If that doesn't work you can try a download w/o the CC app's "help": https://creative.adobe.com/products/download/lightroom ... View more

Supported lenses this will tell you what version you have to update to for which lens ... View more

GPU notes for Lightroom CC (2015)​ depending on environment, many GPUs will slow development. Also see Adobe Lightroom GPU Troubleshooting and FAQ  Try turning off GPU support by unchecking the box macOS: Lightroom > Preferences > Performance Windows: Edit > Preferences > Performance Once you've determined if that helps, see if there's a new driver for your GPU card, install and reenable GPU support and try that. Not sure whether export figures into this. ... View more

What operating system and version of Lightroom?  Did you recently upgrade to Win10? If so: Error: 'Unexpected error opening catalog' occurs in Lightroom after Windows 10 upgrade. ... View more

Realize I'm straw-grasping... times I've lost things like that have been in mistakenly applying copied settings that overwrite, or leaving the spot healing switch turned off? ... View more

This might be too simple/obvious ("is it plugged in?") - but just to make sure - you're not exporting or examing the original images outside of Lightroom. I assume you know they remain untouched. ... View more

See if this thread speaks to your issue: Re: 5DS(r) tone curve in LR and ACR : crushed shadows with all profiles ... View more

Ychen, At the extreme risk of going down the X-trans/Adobe RAW rabbit hole: Adobe´s got the best RAW converter for Fuji X-Trans now, or what ? Part 1 — hendriximages  and Adobe´s got the best RAW converter for Fuji X-Trans, Part 2 & Conclusion — hendriximages tldr: Adobe's implementation seems to have vastly improved over a few years, arguably rivaling competitors that used to be miles superior. I've had good luck (on my XE-1) with Peter Bridgewood's suggestion SHARPENING X-TRANS FILES IN ADOBE LIGHTROOM  to go full-tilt to detail 100, and it seems to be as true now as a few years ago, but I've also become a bit less of a peeper in the intervening time 😉 ... View more

From the thread here: Dynamic Range (DR400) and Lightroom: Fujifilm X System / SLR Talk Forum: Digital Photography Review “Lightroom and Adobe Camera Raw are also smart enough to recognize RAWs with extended DR settings, and they automatically push the RAWs up 1 or 2 EVs when the images are opened with the software. However, recovering the highlights isn’t an automated process; it’s the user’s job. Sadly, this can become pretty tedious because Lightroom’s exposure-related sliders work in a different way than Fuji’s tone-mapping. Even worse, DR200% isn’t recognized if the shot was taken in DR-Auto mode. This means that the image will look underexposed by 1 EV after importing it. To see the image with its correct brightness, you have to move the exposure slider one stop to the right. Hopefully this bug—which equally affects the X-Pro2—will have been fixed by the time you read this.” Excerpt From: Pfirstinger, Rico. “The Fujifilm X-T2.” Rocky Nook, 2016-12-08. iBooks. ... View more

Here's a page outlining things to try Adobe Creative Cloud desktop app doesn't open or shows a spinning progress wheel ... View more