SEPM Large DB Size and Content / Outbox Folders - Low Disk Space

Hello,

SEPM Version: 12.1.4023.4080
C Drive Size: 50GB
Log Setting: 7 Days
Clients: 55
Defination to Keep 3 Days
Win 2003 R2

I am running out of disk space, i cant expand volume so I have to survive with this. Before DB size always stay in 1GB and now it 7GB along with other folders which has increased their size to bigger m out of space on disk C:. Help me to find solution with least steps: more details for refrence as below:

1)
C:\Program Files\Symantec\Symantec Endpoint Protection Manager\db
7GB DB SIZE
1.5GB LOG FILE SIZE

2)
7GB Files in C:\Program Files\Symantec\Symantec Endpoint Protection Manager\data\outbox\ImportPackage

3)
8GB in C:\Program Files\Symantec\Symantec Endpoint Protection Manager\Inetpub\content