MasterCook 20 Reinstallation


First make a backup copy of your files as explained here (using Backup or Windows):

Note: You can use Windows to backup your files as explained in the above article if the My MasterCook Manager will not launch.


Go to the Add or Remove Programs screen in the Windows settings screen and select MasterCook 20 and uninstall it. See the screenshots below. Do NOT use the Repair option. Use the Remove option. Select YES on the next screen so it removes everything. (You have everything you need if you followed Step 1 above to backup your files.)





Make sure there are no remains of the previous install before you install once again. Otherwise, those corrupt files will remain and so will your problems. If you are unable to find any of the 3 folders below, STOP. Contact us and let us know.

Then check to see that the MasterCook 20 folders are removed from the computer. Look for them in these 3 locations:

  • C:\Users\Public\Documents\MasterCook 20
  • C:\Program Files (x86)\MasterCook 20
  • C:\ProgramData\MasterCook 20

Windows hides the ProgramData folder that is inside the C drive, so you will want to make sure that is not hidden from you. See this:

CAUTION: If you do not delete folders that may have been left behind, will continue with a corrupt reinstallation.


Next, restart the computer and install MasterCook 20 once again using your previously purchased installation file. If you have a subscription to which includes storage of all of your files, you can find it in your account here. Use the Download link in the right column.

Otherwise, if you purchased a download installation file, your computer automatically saves it to the Downloads folder on your computer where it remains unless you delete it. You should keep a copy of that file as explained in your email purchase receipt. (If you have lost or misplaced your installation file and you have a copy of your receipt, you can get a discount on a download replacement if you contact MasterCook Support.)


After you have installed a fresh copy of MasterCook 20 onto your computer, startup MasterCook 20. Confirm it works as expected. Test any problem you previously had. Do not add your files until you confirm the program works as expected with its own files first.

If you are prevented from doing normal things in MasterCook, restart your computer and try again. Sometimes restarting your computer can fix odd problems. Otherwise, if you have an antivirus program installed on your computer, they can block MasterCook from working properly. You need to add MasterCook's folders to the Exclusion List for your antivirus program. Below are a few antivirus program's instructions.

  1. C:\Program Files (x86)\MasterCook 20
  2. C:\Users\Public\Documents\MasterCook 20

Avast Exclusion List Instructions

McAfee Exclusion List Instructions

Norton Exclusion List Instructions

If you continue to have problems with the fresh installation after following the steps above, you need to contact a computer technician who can log into your computer and troubleshoot and find the cause and then fix the problem. We are not licensed or insured to work on computers. Have them follow these same instructions.



You can restore the files into the fresh installation. Close MasterCook before you begin. The process is the same as if you are transferring from a previous version as explained in this article:


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