i have this system32\installer\files\ directory that
contains 250mb files, such ad 297f796.msp etc.
what are those files, and can they be deleted without
harming my system?

Saul wrote:
> i have this system32\installer\files\ directory that
> contains 250mb files, such ad 297f796.msp etc.
> what are those files, and can they be deleted without
> harming my system?

No idea what created that directory...

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<- Shenan ->
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These files have been created by applications that used MS Installer and patches. You better don't delete them since you may not able to un/reinstall the applications.