Photoshop: Slower File Saving on Windows 10?

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I've noticed Photoshop saving files much slower since upgrading to Windows 10 OS from Windows 7; I've upgraded primary drive to an SSD and assumed, if anything, it would be faster, any reasons it could be so much slower?
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Shaun Simpson

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Posted 2 years ago

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Jeffrey Tranberry, Sr. Product Manager, Digital Imaging

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How big are the files you're trying to save? Are you saving them to your primary drive? (it sounds like you are but want to confirm)
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Shaun Simpson

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They're 25MP photographs, batch processed with 5 layers; with compression disabled the files are about 900mb, with compression turned on they're about 650mb each. Both are considerably slower than they were prior to the upgrade.

Photoshop is now on the SSD with the OS; the images are on their own WD 2TB Black HD.

The files are on the same drive as before, but taking at least 5x longer to save; the only thing that has changed is the Win 10 upgrade, and Photoshop is now on a SSD, instead of a traditional drive.
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Jeffrey Tranberry, Sr. Product Manager, Digital Imaging

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And when you say Batch processed, you're using File > Automate > Batch?
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Shaun Simpson

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File -> Scripts -> Image Processor
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Jeffrey Tranberry, Sr. Product Manager, Digital Imaging

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Could you try an experiment for me? Go to Preferences > General, uncheck "Show "Start" Screen when no documents are open" - Restart Photoshop and try your batch. Is it faster?
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Shaun Simpson

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The processing seems to be running at the usual speed, it's just the saving process, the progress bar crawls so slowly.

I just saved a file I was working on, about 700mb in size, 11 layers, and it took well over 1min to save without PSD Compression. With compression it took closer to 2 minutes.
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Jeffrey Tranberry, Sr. Product Manager, Digital Imaging

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To be clear, disabling the start screen did not affect the speed of the total batch process time?
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Shaun Simpson

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No, it didn't change the speed of the total batch processing time.

The speed issue I'm concerned with is the time it takes to save the file; both as part of a batch, and also as a single image. Saving a single image takes the same extended amount of time as it takes to save after they've been handled by the Image Processor.

I hit save on an image, typed this entire message, and then when back to Photoshop in time to see the last few seconds of the file saving.
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Jeffrey Tranberry, Sr. Product Manager, Digital Imaging

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Hmm. Do other applications that can save large files have similar slow save times?  Any antivirus running? If you run in safe mode, do the saves speed up?
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Shaun Simpson

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Other applications have been able to save large files without trouble or speed issues. Issue persists with and without anti-virus software running. Haven't tried it in safe mode; it's a clean install on a new drive, not a lot of applications running, and nothing else accessing that drive.
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Jeffrey Tranberry, Sr. Product Manager, Digital Imaging

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When you say clean install, was Win 10 a clean install? Or was win 7 on the system and upgraded to Win 10?
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Shaun Simpson

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It was a clean install on a new drive; a brand new installation of Windows 10 on a brand new drive without any previous OS on it. An upgraded OS wouldn't be considered a clean install.