I would not recommend that you actually delete any uhp file.
The proper procedure to follow, is to first put the suspected
trouble making file in a zip folder and then either move it to
another folder on the "C" drive or put it on some external storage
media - i.e.; CD, floppy or flash drive so that you have a back-up
in case you need to restore the file. After doing this, then delete
the original file from the Hal folder. Simply deleting such a file
can render other functions built into Hal useless, and/or may cause
corruption of the original installation and license file. [

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