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Hi I have windows 10 pro and I am facing a strange behavior. I was running out of disk space and after research I found that I had more than 6 million HTM files in two folders:

  1. C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE
  2. C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\INetCache\IE

Example of a log files look like this:

<meta http-equiv="Content-Type" content="charset=unicode-1-1-utf-8"><!-- saved from url=(0015)assemblybinder: --><html><pre>
*** Assembly Binder Log Entry  (11/30/2017 @ 8:04:32 AM) ***

The operation was successful.
Bind result: hr = 0x0. The operation completed successfully.

Assembly manager loaded from:  C:\Windows\Microsoft.NET\Framework64\v4.0.30319\clr.dll
Running under executable  C:\Program Files\Microsoft SQL Server\MSSQL13.FWDEV\MSSQL\Binn\Polybase\mpdwsvc.exe
--- A detailed error log follows.

=== Pre-bind state information ===
LOG: DisplayName = Microsoft.SqlServer.DataWarehouse.DataMovement.MessageTypes, Version=10.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91
 (Fully-specified)
LOG: Appbase = file:///C:/Program Files/Microsoft SQL Server/MSSQL13.FWDEV/MSSQL/Binn/Polybase/
LOG: Initial PrivatePath = NULL
LOG: Dynamic Base = NULL
LOG: Cache Base = NULL
LOG: AppName = NULL
Calling assembly : DMS, Version=10.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91.
===
LOG: This bind starts in default load context.
LOG: Using application configuration file: C:\Program Files\Microsoft SQL Server\MSSQL13.FWDEV\MSSQL\Binn\Polybase\Dms.exe.config
LOG: Using host configuration file:
LOG: Using machine configuration file from C:\Windows\Microsoft.NET\Framework64\v4.0.30319\config\machine.config.
LOG: Post-policy reference: Microsoft.SqlServer.DataWarehouse.DataMovement.MessageTypes, Version=10.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91
LOG: GAC Lookup was unsuccessful.
LOG: Attempting download of new URL file:///C:/Program Files/Microsoft SQL Server/MSSQL13.FWDEV/MSSQL/Binn/Polybase/Microsoft.SqlServer.DataWarehouse.DataMovement.MessageTypes.DLL.
LOG: Assembly download was successful. Attempting setup of file: C:\Program Files\Microsoft SQL Server\MSSQL13.FWDEV\MSSQL\Binn\Polybase\Microsoft.SqlServer.DataWarehouse.DataMovement.MessageTypes.dll
LOG: Entering run-from-source setup phase.
LOG: Assembly Name is: Microsoft.SqlServer.DataWarehouse.DataMovement.MessageTypes, Version=10.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91
LOG: Binding succeeds. Returns assembly from C:\Program Files\Microsoft SQL Server\MSSQL13.FWDEV\MSSQL\Binn\Polybase\Microsoft.SqlServer.DataWarehouse.DataMovement.MessageTypes.dll.
LOG: Assembly is loaded in default load context.

I've managed to remove the files from both folder by using command line bash for windows with administrator privileges, by running command:

find . -name "*.HTM" -delete

I both of the mentioned folders. And I happily got back about 29 GB of space after some time. So I have the work around to use when I have to clean disk. But I'm not sure if I'm doing something wrong. Right now everything is working fine and I don't see any problems. However I am curious:

  1. What are these logs?
  2. What causes storing them in such a strange place?
  3. Can I somehow turn it off, I don't want to run this clean up every month
  4. Am I doing something dangerous by manually deleting them?
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2 Answers 2

Reset to default
1

You can try turning off Fusion (.NET) logs:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Fusion

ForceLog set value to 0 LogFailures set value to 0 LogResourceBinds set value to 0 EnableLog set value to 0

Or you can try changing log path to another location:

Add new String value called LogPath and set value to folder for logs (e.g. C:\FusionLog)

Or, If you have the Windows SDK installed on your machine, you can use the "Fusion Log Viewer"...

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1
  • Hey, thanks for the answer! Unfortunately because I changed my machine few months ago I can't check if it solves the problem, cause it does not appear on my fresh installation of windows. But really, thanks for the effort! Hope somebody finds it useful.
    – CodeDog
    Commented Oct 2, 2018 at 6:19
0

These folders are home of the Internet Explorer cache. You can delete all Temporary Internet Files in "Options".

You ´re not breaking anything by manually deleting them.

You can also set it up any way you like it. Read this: https://www.howtogeek.com/127565/how-to-modify-caching-behavior-in-internet-explorer-10/

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2
  • Well that's interesting but why that happens since I am not using Internet Explorer or Edge. And why this files grow so rapidly. Have in mind that I deleted about 29 GB. And I've tried deleting these files in Internet Explorer options but it didn't work. But anyway thanks for the hint.
    – CodeDog
    Commented Nov 30, 2017 at 10:11
  • Don´t know. Maybe you´re using an application that uses IE?
    – Jannis Alexakis
    Commented Dec 5, 2017 at 9:40

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