How is the UsrClass.dat created and from what?

Question

_{Tuesday, March 26, 2019 8:50 AM}

Hi, the title is the question and I'm really having a hard time finding this information. 

If I wanted to pre-populate the data in this file so that every single user that logs on to a system for the first time gets said data, how do I go about to do this?

Regards

/C

All replies (4)

_{Wednesday, March 27, 2019 2:17 AM}

what is the file usrclass.dat?

It is one of two User registry hive files and stores per-user CLASS information. This can be quite useful in a TS environment. It is

represented at HKEY_CURRENT_USER\Software\Classes

When we delete usrclass.dat file from system, the Start button, search and desktop options like calendar, sound button are not worked, but when restart computer the usrclass.dat file will be automatically restored, then all things work as default.

Similar case opinions here:

Regards

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_{Wednesday, March 27, 2019 11:36 AM}

I am intimately familiar with the file and its function and that it contains a portion of a users settings visible in the registry.

But what I'm seeking to find out is from what/where does Windows get its information to populate this file. And if you can add to this information beforehand instead of having to do it from a script of some kind.

/C

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_{Tuesday, April 9, 2019 7:53 AM}

Would you mind letting me know the update of the problem? If you need further assistance, feel free to let me know.

Please remember to mark the replies as answers if they help.
If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.

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_{Tuesday, May 21, 2019 7:54 AM}

I have not pursued this now for a while.

But I still have no answer to my question. What is the source for Windows when creating the UsrClass.dat file during first logon?

And can this source be amended manually somehow?

/C