Acronis True Image: "The serial number is incorrect" error

Serial number is not accepted, message "Sorry, the serial number couldn't be checked. Try again later." is displayed

1. Make sure that you are using the correct installation file. It is recommended to register your serial number on Acronis website and download the necessary installation file. See Downloading an Installation File of Acronis Software.

2. If you have several Acronis Home products, make sure you selected the correct serial number.

   (!) Acronis True Image Home 2011 and Acronis True Image 11 Home are different products and use different serial numbers. See Acronis True Image Home 2011 and Acronis True Image 11 Home.

   (!)  Acronis True Image Home 2010 and Acronis True Image 10 Home are different products and use different serial numbers. See Acronis True Image Home 2010 and Acronis True Image 10.0 Home.

3. Make sure that language of the installation file matches the language of serial number.

   (!) The following products can be installed in different languages using the same serial number: e.g. you can install a French version of the product using an English serial number (older Acronis Home products do not allow that):

   • Acronis True Image 2010 or later
   • Acronis Disk Director 11 Home
   • Acronis Backup and Security 2010
   • Acronis Internet Security Suite 2010
   • Acronis Antivirus 2010
4. Make sure that you have a full serial number. Boxed versions of the product are sold with 16-symbol activation key that needs to be registered in order to obtain a full serial number. See Activating a Boxed Version of an Acronis Product.

   The following Acronis Home products use 64-symbol serial number (8 blocks of 8 symbols) for installation:

   Acronis True Image Home 2009 or later Acronis Disk Director 11 Home Acronis Backup and Security 2010 Acronis Internet Security Suite 2010 Acronis Antivirus 2010

   Older Acronis Home products use 25-symbol serial number (5 blocks of 5 symbols):

   

5. If you are typing the serial number manually (e.g. it is printed on CD sleeve) check the serial number for possible typos and misprints. Common misprints include:
   

   0 (zero) and O (Oscar)

   1 (one) and I (India)

   5 (five) and S (Sierra)

   8 (eight) and B (Bravo)

6. Make sure that there are no spaces before or after serial number when you type or paste it in the available field. See also Pasting Serial Number in the Installation Wizard of Acronis Products.
   

   Incorrect:	Correct:

7. After you enter the serial number, Acronis product prompts you to enter another serial number:

   

   You specified a serial number for an Upgrade version of the product. In the second field please enter a serial number for an earlier version of Acronis product of the same product line (e.g. if you are installing Acronis True Image Home 2011, you should first enter the serial number for Acronis True Image Home 2011 Upgrade and then the serial number for Acronis True Image Home 2010). See also How to find the serial number of your Acronis product.

    

   (!) If an earlier version of Acronis product is already installed in your system, installation assistant will recognize serial number from the earlier version automatically and will not prompt you to enter a second serial number.

   (!) Acronis True Image 9.1/Echo Workstation is a corporate product and cannot be used as previous version for installing Acronis True Image Home and other products from Home & Home Office line.

8. Check the list of known issues with Acronis Home products serial numbers:
   • Acronis True Image Home 2009 UK Boxed Version Does Not Accept Serial Number
   • Acronis True Image Home 2009 Build 9788 Does Not Accept the Serial Number
   • Acronis Disk Director 11 Home Upgrade Does Not Accept Acronis Disk Director Suite 9.0 Serial Numbers
   • Acronis Backup and Security 2010: The Serial Number Is Invalid
   • Acronis True Image Reports It Cannot Find Proper Serial Number after Installation