If you’re trying to activate Driver Booster, Advanced SystemCare, or other IObit products and you see the error message:
“Invalid License Code! Please enter a valid license code.”
— don’t worry, you’re not alone.
This is one of the most common activation problems IObit users face. Fortunately, it’s easy to fix once you understand why it happens.

In this guide, we’ll cover:
- Why the “Invalid License Code” error appears
- Step-by-step solutions for Driver Booster and other IObit products
- How to avoid activation issues in the future
- Bonus: How to get a valid Driver Booster 13 PRO license safely
If you want to activate driver booster 13 pro with free license below is the following links:
List of Driver Booster 13 Keys
Why You Get the “Invalid License Code” Error
The error usually happens due to one of the following reasons:
1. Typing Mistakes (Most Common)
- Many users accidentally enter the license code incorrectly.
- Common errors:
- Confusing O (letter O) with 0 (number zero)
- Mixing up I (capital i) with l (lowercase L)
- Adding extra spaces before or after the code
💡 Pro Tip:
Always copy and paste the code directly from your email or purchase confirmation to avoid mistakes.
2. Wrong Product or Version
Each IObit product has its own license code.
For example:
- A Driver Booster 13 license cannot activate Driver Booster 12 or 14.
- An Advanced SystemCare Pro key won’t work for Advanced SystemCare Ultimate.
✔ Check the product version before entering the code.
3. License Already Activated on Maximum PCs
Some license keys are limited to 1 or 3 PCs.
If you’ve already used the key on the maximum allowed devices, you’ll see this error.
Solution:
Deactivate the license from the old computer (or contact IObit support to reset it).
4. Using an Expired or Revoked Key
- If your subscription expired, the license becomes invalid.
- If you’re using a giveaway or pirated key, IObit may blacklist it, which will trigger this error.
💡 Pro Tip:
Visit Driver-Booster-13-Key.com for legitimate activation guides and safe trial keys.
5. Old System Files Causing Conflicts
Sometimes leftover files from previous versions of Driver Booster or other IObit products interfere with activation.
How to Fix “Invalid License Code” Error (Step-by-Step)
Here’s how to troubleshoot and fix this issue quickly.
Step 1: Verify You’re Using the Correct Product
- Open the program you want to activate.
- Go to Help → About and confirm the exact version.
- Make sure your license code matches the version.
Example:
- Driver Booster 13 PRO key → Driver Booster 13 only.
- Advanced SystemCare 17 key → ASC 17 only.
Step 2: Copy & Paste the License Code
- Highlight the entire code from your email or license manager.
- Right-click and choose Copy.
- In the program, Paste the code directly (no typing).
❌ Don’t:
- Add spaces before or after the code.
- Use auto-fill or browser-saved codes.
Step 3: Delete Lang.dat File (Driver Booster Specific Fix)
If you’re activating Driver Booster and the error persists:
- Close Driver Booster completely.
- Navigate to its installation folder:
C:\Program Files (x86)\IObit\Driver Booster
- Find and delete the
Lang.dat
file. - Restart Driver Booster and try activation again.
💡 Why it works:
This clears language/region-related data that sometimes blocks license validation.
Step 4: Check Internet Connection & Firewall
Activation requires an active internet connection.
- Disable any VPN temporarily.
- Whitelist Driver Booster or other IObit programs in your firewall/antivirus.
Step 5: Reinstall the Latest Version
If nothing works, reinstall the software:
- Uninstall the current version completely.
- Download the latest version from the official IObit site:
- Install and activate using your license code.
Step 6: Contact IObit Support
If you’ve purchased a legitimate key and still can’t activate:
- Contact IObit customer support with:
- License code
- Order number
- Screenshot of the error message
Support link: https://www.iobit.com/en/onlinefeedback.php
How to Avoid Future Activation Issues
- Buy from official sources only — never use pirated keys.
- Keep the license email safe.
- Upgrade your license before it expires.
- Always use the latest version of the software.
Get a Working Driver Booster 13 PRO License
If you want to unlock Driver Booster 13 PRO features safely:
- Visit Driver-Booster-13-Key.com for:
- Step-by-step activation guides
- Legal free trial options
- Tips to purchase genuine keys at discounted rates
This ensures you stay protected and avoid blacklisted keys.
Final Thoughts
The “Invalid License Code” error can be frustrating, but it’s usually easy to fix.
By carefully checking your license details, cleaning leftover files, and following the steps above, you can activate Driver Booster or any IObit product smoothly.
If you’re still stuck, the problem might be with the key itself — in that case, visit Driver-Booster-13-Key.com for safe solutions and expert guidance.