how can i detele my sbs 2008 /exchange 2007 mailbox.ebd file and replace it with a new one

i need to delete and replace my C:\Program Files\Microsoft\Exchange Server\Mailbox\First Storage Group\mailbox.edb on a sbs 2008 with exchange 2007 sp1
i have run the ESEUTIL and its told me after a recovery ( for a log /drity shut down issue )and a repare that its working , but this doen't seem to be the case and due to the number of mailbox on this machine
i would just like to start again and use the .pst files we have to reinstall the user mailbox's
from there laptops back to the server once we replace this edb file

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SurajConnect With a Mentor Commented:
first move or delete all the log files and also the .edb file to a different location.
Ie, keep the C:\Program Files\Microsoft\Exchange Server\Mailbox\First Storage Group folder blank
then restart the microsoft echagne system manager and then goahead and mount the store,.
this wil create a new .edb file in that location by itself...
try sending and receiving few test mails...
gauravbhandariConnect With a Mentor Commented:
Another solution,
1. stop information store service> rename First Storage Group folder to "First Storage Group.old"
2. Create new First Storage Group folder & restart information store service.

It will create a new (blank) database. Now, you can import .PST's to user mailboxes.

You can have more than one database on the server. Therefore if the database is mounted, then you could create a new Storage Group and database, then move mailbox to the new database. Once complete the original can be dropped from withing Exchange.

Unless you move the mailboxes, you will be unable to delete the database through Exchange, which will leave you with a mess on your hands.

Restart the information store service for the system mailboxes to be recreated.

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Manpreet SIngh KhatraSolutions Architect, Project LeadCommented:
I would agree with Gaurav as itis what you actuall want and have asked for .....
ebecpcAuthor Commented:
x-sam's worked , we found for some reason we had attributes / rights isses even though we were using the admin account to do the work so after using x-sam's answer we had to manaul edit them and its all working  , i'm just uploading the pst's now

i'd like to add that Gaurav answer is right as well  as we tried that ..but due to that odd attributes problem it didn't work for us to start with.
thats why i had posted in here and used x-sams

so i'd like to give x-sam 450 ( for the fix we used )  and Gaurav 50 (to say thanks for posting second fix )
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