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ezAccounting: License Registration Issue and Solution

Our system will send the license message automatically after the transaction completes. If you're unable to register your ezAccounting license, refer to this step-by-step guide for troubleshooting and solutions.

When you run ezAccounting software trial version, you will see key code pop up screen. Once you enter the key code, this pop up screen will not display again. To deposit the checks, you need to register the license code to print checks without TRIAL watermarks.

In this guide, you will find:

  • "Invalid key code" issue & solution
  • How to purchase/retrieve the license
  • How to update or rollback ezAccounting



  • ezAccounting License Key Issue and Solution


    Error code Error description Solution
    4 or 9 Wrong key code Please view #1, #2, #3 in this guide

    If you lost license, please follow this guide to retrieve your license.

    6 This key code has already registered on another computer. 1) If you need to switch computer, please follow up this guide to transfer license from the old computer to a new computer

    2) If you purchase a new computer, please contact us and purchase extra license

    3) If your computer is crashed, please follow this guide to reset license for a new computer.

    12, 15, 16 or 17 1)Transaction failed.
    2)Or the buyer cancelled the order.
    3)Or the buyer switched/updated the order.
    If you switched/updated order, our system will send you a new key code. Please contact us if you did not receive it.
     
    Permission issue

    Please scroll down and view #4 solution
      Insufficient Privileges to install license

    Please scroll down and view #5 solution


    #1: You entered the wrong license key or installed the wrong software *****

    The license codes of different version are different. For example: you will receive "Invalid license key" error if you enter key to ezAccounting 2026 version.

    1.1 You can find version information on key input screen
    about ezAccounting

    1.2 You can find the version you purchased from the license message
    ezAccounting license

    1.3 Solution
  • If you installed the wrong software, you can install ezAccounting at
    https://www.halfpricesoft.com/accounting/accounting-software-download.asp

  • If you installed the latest version by mistake, you can rollback to the previous version by following this guide
    https://www.halfpricesoft.com/accounting/ezAccounting_rollback.asp

  • If you purchased the previous version and like to purchase the latest version, you can purchase the new license key at
    https://www.halfpricesoft.com/accounting/accounting-software.asp#purchase.



  • #2: You need to copy and paste keycode including dashes("-")

    Some mail server may also add extra hidden characters around key code. You can copy the key code to NotePad, then copy it to ezAccounting application to solve this issue.

    How to copy and paste
    Double-click on the text you want to copy, or highlight it. With the text highlighted, press Ctrl + C to copy. Move your cursor to the appropriate location and press Ctrl + V to paste


    #3: Some email server may add hidden characters around key code.

  • Start Notepad by clicking the Start button. In the search box, type Notepad, and then, in the list of results, click Notepad.

  • Open Notepad application, copy the license key from email to the NotePad.

  • Copy the key code from NotePad to your application to register it.

  • This process will remove the unseen charaters added to the key code by your email server.


    #4: Permission issue

    Reasons:
    1) You do not have enough permission.
    2) Or Windows updates messed up the user permissions.

    You need to log in your computer as administrator or a user with enough persmission to register the key code.

    Solution 1: Ask IT or system administrator in your company for help.

    Solution 2: Review and edit the persmissions, if you are the administrator of the local computer.

    Solution 2: Reinstall ezAccounting from scratch
    While reinstalling, choose the option to install the software for "Everyone". This will help prevent most potential permission-related issues.




    #5: Insufficient Privileges to install license



    Reason 1: Such an error may occur when some Windows component is busy.

    Solution 1: Restart computer
    1) power off your computer
    2) wait for 60 seconds
    3) restart computer
    4) Start ezAccounting and try again.

    Reason 2: You do not have enough persmissions or Windows updates messed up the user permissions.

    Solution 2: Reinstall ezAccounting from scratch
    When reinstalling, choose the option to install the software for "Everyone". This will help prevent most potential permission-related issues.

    Reason 3: The old version of ezAccounting may not be compatible with the latest Windows computer after recent Windows security updated. (For example: running ezAccounting 2021 on Windows 11.)

    Solution 3: Update ezAccounting to the latest version and purchase a new license..
    We offer a discount for returning customers - please contact us to receive your special upgrade link.


    Further Assistance

    If you still see the key issue, please contact us at [email protected] and answer the following questions:
    • Software name and version number on key input screen. (ie: ezAccounting 2025, version 3.15.5)
    • Your key code?
    • Your computer: Windows 11, 10, 8, 7 or Mac or others?
    • The error code and error description?
    • Buyer full name and zip code of billing address used with your order.
    If you cannot receive response in one business day, your message may be blocked into JUNK folder by mistake. Please feel free to contact us again.


    How to purchase/retrieve the license

  • If you are a new customer or if you are a previous customer (ie: You purchased ezAccounting previous version and need the new license for ezAccounting 2026), you can purchase license from our site.

  • purchase ezAccounting software now

  • If you lost your license (ie: You purchased ezAccounting 2026 license and cannot find 2026 license):

  • - Please search your email account for the license key message from "[email protected]".

    - If you cannot find the license message from your email account, please follow our resend key instructions..

    How to update or rollback ezAccounting

  • How to update ezAccounting
  • How to rollback to previous version if I installed the new edition my mistake