what happens to files after compacting?

G

GLOBAL1

I want to make sure that if I compact my files both my present and archived
folders/files do not get lost or changed in any way. I need to make sure my
labeling and formatting remain the same. Does "compacting" just reclaim the
space a file has left or does it impact anything else? Will I view and/or
retrive all files the same as I do now?
 
D

DL

Nothing is changed, the data file is primarily a database, compacting merely
'clears' empty space within the structure
NB You may actually see little size change, if any, after compacting
PS Are you compacting for a specific reason? ie you are using an old format
data file which is reaching the size limitation?
 
V

VanguardLH

GLOBAL1 said:
I want to make sure that if I compact my files both my present and archived
folders/files do not get lost or changed in any way. I need to make sure my
labeling and formatting remain the same. Does "compacting" just reclaim the
space a file has left or does it impact anything else? Will I view and/or
retrive all files the same as I do now?

When you delete an item, it isn't deleted. It just gets moved into the
Deleted Items folder. The item merely got moved into a different folder
so it never did get actually deleted.

When you permanently delete an item by deleting it from the Deleted
Items folder or using Shift+Del, the item's status is changed to Deleted
and hidden from you seeing it anywhere in Outlook's UI. The item still
exists in the database. Delete-marked items are not displayed by
Outlook but they still physically exist in the database.

When you compact the database, you physically purge all delete-marked
items from it. Whitespace and delete-marked records are physically
removed from the database and then there is some reindexing and
management to make the database file smaller in size.

Do deleting items, even when permanently deleting them, does not reduce
the size of the database file. Not until you compact that database to
physically purge the delete-marked items will the file get smaller.

Anytime you write to a file, there is chance of corruption. If you
don't do regular backups, you deem your data as worthless or
reproducible. Compaction or just the normal use of Outlook, the OS file
system, file indexing utilities, etc., could cause the file to get
corrupted. So do you do backups so you can restore your data files?
Start thinking about it. It you don't back it up, it's not important to
you because you deemed it unnecessary to protect your data. What are
you going to do when your hard drive dies someday?
 
G

GLOBAL1

DL- Thank you for your response. The question of "compacting" came up when
my system started to prompt me to free disk space. I have always worked with
large companies who had IT Dept's. Now that I work on my own PC, there are a
lot of things I have not experienced. I will do a back-up of the files then
allow the system to do the compacting. Thanks again!
 
G

GLOBAL1

VanguardLH- Thank you for the detailed information and the ominous warning
about "back-ups". I agree, as I have worked with others who have lost all
their data so, I have a system that backs up all my files on a daily basis.
However, I will fair your warning and do a specific back up of the email
files and then run the compacting. Thanks!
 
D

DL

Free Disk space msg? thats a question that can be researched on the group
that supports your o/s
Compacting a pst is unlikely to give much of a boost
Try Running Disk Cleanup, in Internet Options set your Temp files to 50mb
 

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