Date format of Last Scandisk and Defrag

Keywords: 	 Date format

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Question:

Microsoft stores the date value for the last time Defrag and Scandisk have run. The format is: CF 07 07 00 02 00 1b 00

Somehow that translates into July 27, 1999. Anybody have a clue how to translate that...

I want to create a utility in winbatch that reads the date and kicks off Scandisk and Defrag if the date is more than 30 days...

Answer:

CF 07 07 00 02 00 1b 00

You are fortunate. 07CF is 1999, 07 is July, 1b is 27. Need more data to find out what 02 means. Here's how to deal with it:

1. Break it up into two byte checks

   	CF 07
   	07 00
   	02 00
   	1b 00
   

2. reverse the order

   	07cf
   	0700
   	0002
   	001b
   

3. Convert to decimal (See WIL extender)

   	1999
   	7
   	2
   	27
   

4. Guess at meaning

   	1999 year
   	7 month
   	2 no idea
   	27 date
   

See the WilX extender (or tech support database) on info on how to convert hex to decimal. (I assume it is a multsz type registry item. If it is a DWORD there are different ways to break it up and put it together.

See ItemExtract to pick off the pieces from a MULSZ.

For further details see tech article Last time ScanDisk and Defrag performed

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Article ID:   W14251

Filename:   Date format of Last Scandisk and Defrag.txt