Attribute of "compress content to save disk space"

In each file properties, there is an advanced menu that has option "compress content to save disk space"
I'm asking what would make files go compressed automatically in WinXP pro?
because from time to time I find some files being compressed where I'm sure they weren't before, and I didn't change the attribute myself. I just need an explanation of that. Does windows do that automatically for archiving or something like that!...
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

do you mean the attribute of files automatically change to Compress to save space?
sniper038Author Commented:
NO, I mean what makes them (many files here and there no spacific location) automatically changed to Compress to save space (blue colored name)

Is it something natural in "all" WinXP OS's. Or is it an option that can be set!
May be windows does that because am running out of space!

I have a feeling that it is an option to save space automatically, what if that slows my PC and I want to turn it off!!
Certain files in the Operating System are compressed naturally due to their usage and size, are they files in the System or other general files you are talking about?
Acronis True Image 2019 just released!

Create a reliable backup. Make sure you always have dependable copies of your data so you can restore your entire system or individual files.

ah, yeah some system folders are automaitcalled compressed, for example the uninstall information for the updates etc
sniper038Author Commented:
I've noticed some are within the system files and some program files as well. Also, some of my own documents and pictures no matter where they are located (system drive, D drive, or even external drive) and this automatically compressing to (my own files) made me ask the question.
The system files and the program files are probably normal as when installing programmes many developers will have certain files compressed to save space if they are not used very often or are simply to big.

Thinking about it i had a problem like this once, and it was to do with me indexing files; so i took of indexing files on my hard drives (which slows down performance anyho's) and it stopped.  I can't say this is to do with it, maybe it is just windows automatically compressing random files, which is a rather strange behavouiur.
windows does NOT automatically compress any files. you must have enabled any service or feature which does that. files get only automatically compressed when the folder's attribute for compression is set and files are created within there. some folders within %WINDIR% are also compressed (i.e. "%WINDIR%\system32\dllcache").

get an overview about which processes actually run on your machine. i doubt the indexing has to do something with this, but you may check the properties dialog of each drive (checkbox at the bottom).

all in all it sounds more like a virus...?!

If it helps,

a feature available in XP on NTFS-formatted drives only.

In XP, select Start, All Programs, Accessories, System Tools, Disk Cleanup  

It compresses files older than 50 days.

Whenever you want to return a compressed file to its uncompressed state, right-click it and select Properties. Click the Advanced button, uncheck Compress contents to save disk space, and click OK.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
sniper038Author Commented:
"bernani "
>Disk Cleanup  
>It compresses files older than 50 days.

aha i see, that is exactly what's going on.
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Windows XP

From novice to tech pro — start learning today.