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  1.    26 Apr 2017 #11
    Join Date : Apr 2017
    Posts : 13
    Windows 10 Creators Update

    Quote Originally Posted by philc43 View Post
    This test is actually a test of the searching ability in File Explorer and will depend on the indexing that you have set up and also whether or not you have previously indexed the image files.

    In my test the Windows directory found 4275 items in about 10 seconds. When scrolling all the icons show up with only a very short 1sec lag.
    No, I actually meant not the search speed, but once search finishes. It's just a way for everyone to reproduce the problem, even the people who don't have folders with many images on their computers. Windows has a lot of image bloatware, so I used that as a tool to reproduce the issue.

    Basically, if you run the search, and wait for it to finish, and THEN scroll, you will see that scrolling lags and thumbnail generation lags behind. Now that would make sense if that was happening only for the first time, since windows is still generating thumbnails for the new images.

    But you will notice that it does not happen only first time. If you scroll through the entire image list, let the thumbnails generate, then close the window, run the search again, wait for it to finish again, and scroll again, you will see it lags even on subsequent attempts.

    I am 99% confident Creators Update has introduced some bug with thumbnail caching.
      My ComputerSystem Spec
  2.    26 Apr 2017 #12
    Join Date : Apr 2017
    Posts : 13
    Windows 10 Creators Update

    Aaaaaaaaaand it's solved!

    Of course, it's Microsoft's shitty "Photos" modern app, which has probably some callback occurring every time thumbnail gets cached, resulting in super slow caching of them.

    If you right click, and set default program to open jpg, png, and other image files to be old Windows photo viewer, everything goes quick.

    So it's a performance regression caused by some update in Photos modern app in Creators Update.
      My ComputerSystem Spec
  3.    26 Apr 2017 #13
    Join Date : Apr 2017
    Posts : 6
    Windows 10

    FWIW, after I updated to 250 I deleted all thumbnails with Disk Cleanup and restarted. It *appears* that this may have helped. Also reset my color space as rawalanche suggested. Will spend the day with it and see if things are better.
      My ComputerSystem Spec
  4.    26 Apr 2017 #14
    Join Date : Apr 2017
    Posts : 13
    Windows 10 Creators Update

    I tried to delete thumbnail cache via the cleanup too, didn't help. Color profile may help a little, but what definitely helped to me was setting default app for image file formats to be old Windows Photo Viewer instead of the modern Photos app. That reverts the performance back to pre-Creators Update state.

    It also makes sense, because thumbnail generation is always responsibility of the app chosen as default for given file format.
      My ComputerSystem Spec
  5.    26 Apr 2017 #15
    Join Date : Apr 2017
    Posts : 3
    Windows 10 CU
    Thread Starter

    Quote Originally Posted by rawalanche View Post
    Aaaaaaaaaand it's solved!
    Of course, it's Microsoft's shitty "Photos" modern app, which has probably some callback occurring every time thumbnail gets cached, resulting in super slow caching of them.

    If you right click, and set default program to open jpg, png, and other image files to be old Windows photo viewer, everything goes quick.
    So it's a performance regression caused by some update in Photos modern app in Creators Update.
    I don't that the problem is solved, because I seriously doubt that thumbnail caching is in any way connected to Microsoft Photo app. Changing defaults do not improve the performance.

    I did the *.png test and it works very smoothly there. I tried changing the size of icon preview and I ran the test few times. Everything smooth there.

    My windows version is 15063.138. I will try to update to .205 and see what happens.
      My ComputerSystem Spec
  6.    26 Apr 2017 #16
    Join Date : Apr 2017
    Posts : 13
    Windows 10 Creators Update

    Quote Originally Posted by Nexus6p View Post
    I don't that the problem is solved, because I seriously doubt that thumbnail caching is in any way connected to Microsoft Photo app. Changing defaults do not improve the performance.

    I did the *.png test and it works very smoothly there. I tried changing the size of icon preview and I ran the test few times. Everything smooth there.

    My windows version is 15063.138. I will try to update to .205 and see what happens.
    I am really sorry it does not work you. It definitely works for me. I've even made a video to show you I am not kidding, here: Windows 10 Creators Update slow explorer thumbnail loading fix - YouTube

    It really makes a big difference in my case.

    I am also running latest cumulative update, which I've updated to yesterday, and that itself did not fix anything for me, so I doubt it will fix anything for you.

    You should really try to change default app for your image files if you haven't yet
      My ComputerSystem Spec
  7.    26 Apr 2017 #17
    Join Date : Jan 2015
    UK, Midlands
    Posts : 10,953
    Win 10 Pro (1703)

    If you're not using Photos, you may want to make sure you have no albums configured.
      My ComputerSystem Spec
  8.    26 Apr 2017 #18
    Join Date : Apr 2017
    Posts : 13
    Windows 10 Creators Update

    Quote Originally Posted by dalchina View Post
    If you're not using Photos, you may want to make sure you have no albums configured.
    Not sure what exactly you mean? Albums somehow decrease Photos' performance, or...?
      My ComputerSystem Spec
  9.    26 Apr 2017 #19
    Join Date : Apr 2016
    Manchester, U.K.
    Posts : 549
    Windows 10 Pro 64bit

    So was mine (I clean installed CrU) but After a few days it speeded up, I also ran CCleaner but wasn't any immediate improvement.
      My ComputerSystem Spec
  10.    26 Apr 2017 #20
    Join Date : Apr 2016
    x
    Posts : 225
    Win 10

    Quote Originally Posted by Nexus6p View Post
    Hello,

    I have noticed some serious slowdowns on my computer since I updated to creators update. Before the update, my PC was flying lighting fast. I often kept it on power saving mode and it still did not show any sings of slowing down. I always keep my laptop up to date with everything.
    So when creators update was released, I read that it was possible to get it few days faster, before it rolls out to everyone. I downloaded the manual updater from official Microsoft webpage. It began downloading the update and in less than an hour I had working creators update. While everything seemed great initially, I noticed that it is much slower than it was before the update. Picture thumbnails load extremity slowly, the downloads folder ,which has less than 100 files, becomes completely unresponsive when I sort it and so on. And just now for the first time ever, few minutes ago my entire computer crashed. It had blue screen with face on it. I did not catch what the error was.
    Is there any way I can fix the issues I have? Perhaps I have some-kind of insiders build installed on my laptop now? How do I check properly?

    Another thing, I have never joined the insiders program, but I received email thanking me for testing creators update few weeks ago.

    Current version:
    OS Name Microsoft Windows 10 HomeVersion 10.0.15063 Build 15063

    Laptop is Acer Switch Alpha 12SW. 4Gb Ram and I3-6200.
    Hi,

    What hard drive are you using?

    Did you do the upgrade from your current W10 instal, if so it would of left a file on there call windows.old which is an undeletable 20gb or so ?

    Just run a defrag program like Perfect Disk 14 in trial mode as it will have messed your hard drive up as it sounds like a HDD ?

    You can roll the update back you know as it is not compulsary on any machine yet also ?

    You could also do a clean instal which would remove all the bloatware which comes with the machine ?
      My ComputerSystem Spec

 
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