Tips - Useful utilities for a System Engineer.

Here are some important utilities that you should always ready to be user:

1. WireShark: to sniff and analyze any kind of data in your lan
2. Sysinterlal:
Sysinternal Live:

    Process Explorer Task Manager enanchment
    Contig, command line defragmenter utility

3. Unlocker: Unlock used file and Directory
4. Wipe utility:
5. Tree size portable(and similar utilities and or WinDirStat: