is installed on the C drive. Msocache is about 200 megabytes but it looks kind
of important. I’m sure I didn’t make it nor anybody else. Is it a system file
or spyware? What does it do and can I delete it safely?
Msocache is another of those “magical” directories (not a file) that somehow
just appears one day. Since we’re not looking for this kind of thing constantly
it’s easy to miss exactly when it showed up.
Here’s one clue, though – MSO stands for
Yep. Microsoft Office is trying to be helpful.
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First, Microsoft does have a Knowledgebase article on this, though the
title’s not particularly helpful: Local
Install Source (Msocache).
The bottom line is that it’s simple a local copy of Microsoft Office’s
installation source. Put another way, it’s a copy of portions of the Microsoft
Office installation CD. Why? so that you don’t have to insert the CD when you
add a feature, perform a repair operation, or install service packs and
Msocache is created, quoting the KB article:
…if the following conditions are true:
Personally that seems kind of arbitrary, but there ya go.
You can delete the folder, but, that same Knowledgebase
article goes on to say, “Never delete the MSOCACHE folder by using Microsoft
Windows Explorer.” Why, I do not know. They suggest using the Windows Disk