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Not working

Jeff Fairchild

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Hi Jeff,

This is Cicely from IObit.

Here our specialists worked out a demo to fix the issue. Please help us look into the issue with the following steps:

1) Please right click the Smart Defrag icon in System Tray to choose the Exit.

2) Download the sd5_core_proxy_log_1228.zip from:




3)Unzip the sd5_core_proxy_log_1228.zip to get sdproxy.exe and sdcore.dll . Right click on the Smart Defrag shortcut on the desktop to choose Open File Location. Copy and paste the sdproxy.exe and sdcore.dll into the file folder of Smart Defrag to replace the old one.

4) Open the Smart Defrag to defrag again and let us know how it works.

Looking forward to hearing from you!

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Hi Cicely,



I had a similar issue where Smart Defrag would stall at 0% on my 2nd hard drive (1st is an SSD) and after replacing the sdcore.dll and sdproy.exe with those from the ZIP file, it seems to work well.


Thank you.






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