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Disk Clean Up. Simple question

Posted on 2004-03-22
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Last Modified: 2010-04-13
After the Disk clean wizard completes its scan there is an option listed as "Compressed Old Files" I find the explaination that teh wizard gives for these files to be vauge and un helpful.

Can someone shed some light on it and help me understand what they are, and more importantly are they "Safe" to delete ?

Thanks!

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Question by:tmercer
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Expert Comment

by:Gareth Gudger
ID: 10652077
Actually I dont believe ti removes any files just compacts old files you haven't used in a while....

To quote from the MSKB,

"Compress Old Files - Windows can compress files that you have not used in a while. Compressing the files saves disk space while still enabling you to use them. No files are deleted. Because files are compressed at different rates, the displayed amount of disk space you will gain is approximate. There is an Options button that you can use to specify the number of days to wait before an unused file is compressed."

@

http://support.microsoft.com/default.aspx?scid=kb;en-us;253597&Product=win2000
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Author Comment

by:tmercer
ID: 10652642
Ok just so I understand correctly,
The system would take a date and compare it with the one in the last modified date of each file. If it fails or passes, The file gets compressed ?

How will this file be affected in regards to performace, and does that file stay compressed after its been opened and closed again ?

Thanks.

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Accepted Solution

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Gareth Gudger earned 80 total points
ID: 10653379
Yes you can spoecify in options after how many days since last usage that the OS should compress those files. Anything over that date would be compressed. I would recommend keeping it high.

With the size of hard drives these days there would be no significant improvement on reclaiming the space (unless you were seriously low) and later accessing these files would most likely take longer as it would need to uncompress them again for usage. However I doubt the extra time would be that noticable.

In regards to the last question, I am not sure. I would imagine if the access date falls below the one specified in the options (see article) then it would stay uncompressed. Or at least you would hope so.

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