Software Write Blocker Concept :

🔹 What is a Write Blocker?

It’s a tool—either hardware-based or software-based—that prevents any attempt to add, modify, or delete data on a disk or device during forensic analysis.\ In this guide, we focus on the software version.

🔧 Tools Used:

Software Write Blocker from: forensicsoft.com/products/safeblock
The program is available with a 7-day trial.
Some Linux forensic distributions, like SIFT, come with a built-in software write blocker.

⚙️ Steps to Use the Write Blocker Program:

Download and Install:
Register on the website and download the software.
You’ll be asked for a license file during installation.
Set a password to protect the program from unauthorized use.
Launch the Program:
Upon launch, you’ll be prompted for the password.
The interface will show:
- Physical disks
- Logical partitions (like C:\ or G:)
Select Target Disk:
You cannot apply blocking to the system partition (like C:).
Choose another drive (e.g., G:) for testing.

🧪 Practical Test:

Before Activation:

You can copy or delete files freely from the G:\ drive.
You can read/write as you like.

After Activation (Enable Blocking):

The program may close File Explorer if it's using the disk.
A 🔒 icon appears next to the drive name → indicating "write protection" is active.

Test:

Try copying a file: ❌ Not allowed
Try deleting a file: ❌ Not allowed

✅ Result: The disk is now completely write-protected.

✅ Why Use a Write Blocker?

Benefit	Explanation
🧩 Evidence Protection	No modifications are allowed during analysis.
🦠 Malware Defense	Even if malware is present, it can't alter data.
🔒 Data Integrity	Evidence remains exactly as it was when seized.
📸 Forensic Imaging	Images created from the disk are legally trustworthy.

📌 Important Note:

Software Write Blockers are not recommended for critical cases since they are not as secure as hardware write blockers.\ However, they are useful for training or low-risk scenarios.

🧭 Summary:

Item	Details
Tool Used	Software Write Blocker from ForensicSoft
Purpose	Prevent disk modification during examination
State After Activation	No copying, deleting, or editing files allowed
Ideal Use Case	Creating a forensic image or analyzing a suspect’s drive