How to Deal with the New Kindle Update?

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The only reason why some people prefer to run the older version Kindle for PC/Mac (1.24 and lower) is that they want to get rid of the new KFX format files which can’t be decrypted by any DRM Removal. Fortunately, there are several methods for either avoiding or handling the KFX format. Here are the top three solutions to help you deal with the new Kindle update and remove Kindle DRM effortlessly.

how to deal with new kindle update

If your Kindle for PC/Mac is forced to update to the latest version, you can perform the following steps:

Method 1: Disable KFX Support in Kindle for PC/Mac

Using the command line to disable KFX that works with the latest version of Kindle for PC/Mac is the easiest solution without neither downgrading Kindle desktop app nor using Kindle e-ink device. Most importantly, it works on all operation systems, including the MacOS Catalina.

Step 1Delete all Kindle books from My Kindle Content folder.

Above all, make sure you haven’t downloaded any Kindle books via the latest Kindle for PC/Mac.

If you don't know where your Kindle files are stored on your computer, you can check this guide to find the correct Kindle content folder.

make sure no kindle books downloaded

Step 2Run the command line.

Exit Kindle for PC/Mac first, then run the command line. Below is the instruction on how to use the command line on Windows computer and Mac respectively.

For Windows users, download this zip containing the .cmd file to your Windows computer, then unzip and run the .cmd file.

run command line on windows

For Mac users, open a terminal window by typing terminal after clicking the magnifier icon on the upper right corner of the screen, then copy and paste this command line: sudo chmod -x /Applications/Kindle.app/Contents/MacOS/renderer-test to the terminal window for disabling KFX support. Next, hit the Enter key, input your power-on password, and hit the Enter key one more time to run the command line.

stop render test

Step 3Re-download Kindle books using the latest Kindle for PC/Mac

Open Kindle for PC/Mac, find the book you want to download, right-click its book cover, and select Download in the pop-up window.

right click to download

Note 1For Mac users, do not download Kindle books by double-clicking the book cover and remember not to open the book after successfully downloading, or you won’t be able to remove Kindle DRM.

Note 2 You can undo the terminal command by running this command line in your terminal window: sudo chmod +x /Applications/Kindle.app/Contents/MacOS/renderer-test.

Note 3 If the book requires both the latest version of Kindle for PC/Mac and KFX support, then there is currently no solution available.

Step 4Install the most powerful DRM Removal to your computer--Epubor Ultimate

Download Epubor Ultimate for Free

Step 5Remove Kindle DRM

Launch Epubor Ultimate, click the Kindle tab in the left navigation bar to load all of your Kindle books that are already downloaded to the software. Then add them to the right blank window to remove DRM automatically.

decrypt kindle books downloaded via newer version kindle

You will notice that the majority of Kindle books downloaded in this way are already DRM free. And you can locate the DRM free files by clicking the book folder icon on the lower right corner of the software.

Method 2: Downgrade automatically to an Older Version of Kindle for PC/Mac

There is an alternate method of blocking the use of KFX, which is downgrading Kindle for PC/Mac.

Older Kindle for PC/Mac, like version 1.24 and lower, can be installed to work around this problem for most users. (This is a 32-bit program and so it is not compatible with macOS Catalina.) For macOS Catalina users, you can crack Kindle DRM by using the command line or Kindle e-ink device, see Method 1 & Method 3.

Step 1Install Epubor Ultimate to your computer.

Download Epubor Ultimate for Free


Run Epubor Ultimate, click the Kindle tab in the left sidebar. You will notice a message reminding you to downgrade Kindle for PC/Mac to version 1.24 to make Epubor Ultimate work. Just click the Download link to start the auto downgrade.

auto downgrade

Note: After installing the older version Kindle for PC/Mac to your computer, it will uncheck the option to auto-update for you.

Step 2Sign-in to your Amazon account.

Launch Kindle for PC/Mac, you need to re-sign into your Amazon account. After logging in to your account, you might be asked if you want to update to the new version, always choose Skip this version to reject it.

Step 3Re-download Kindle books with the older version Kindle for PC/Mac.

Step 4Remove Kindle DRM.

Launch Epubor Ultimate, click the Kindle tab in the left navigation bar to load Kindle books to the software. Then add them to the right blank window to remove Kindle DRM.

decrypt kindle books downloaded via older version kindle

Step 5Convert DRM free Kindle books to .epub/.mobi/.azw3/.pdf if you want to view Kindle books on other readers(like calibre).

When the decryption complete, choose .epub/.mobi/.azw3/.pdf as the output folder in the drop-down menu at the bottom of the software. Last but not the least, press the Convert button to start the conversion.

convert kindle books

TipsYou can find the converted Kindle book by clicking Succeeded or the book folder icon on the lower right corner of the software.

Method 3: Use Kindle E-Ink Device

If you have a Kindle e-ink device registered to your Amazon account, you will have the option of downloading books directly from Amazon website instead of using Kindle for PC/Mac.

Step 1From the Amazon website access Account & Lists >> Content and Devices.

Step 2Find a book you want to remove DRM and press the ... button in the Actions column for that book.

Step 3Choose Download & transfer via USB in the pop-up window.

select download and transfer via usb

Step 4Select the name of your registered Kindle device in the drop-down menu and press the Download button.

select kindle e ink device registered under your amazon account

Soon your Kindle book will start downloading to your computer. And all of them will be saved as .azw3 files.

Step 5Install the most powerful DRM Removal to your computer--Epubor Ultimate.

Download Epubor Ultimate for Free

Step 6Plug in your Kindle e-ink device to your computer.

You will not be able to remove Kindle DRM if you forget to plug in your Kindle e-ink device.

Step 7Remove Kindle DRM.

Run Epubor Ultimate, drag and drop the .azw3 files from your computer to the software to remove Kindle DRM. As shown, not all books are encrypted. Decrypted word will show up to the right of those Kindle books with DRM protection after the decryption. And you can find DRM free files by clicking Decrypted or the book folder icon on the lower right corner of the software.

decrypt kindle books downloaded from amazon website


works for Epubor and writes articles about eBooks and eReaders. She explores the best method to help you read eBooks more freely and wants to share all she has got with you.

10/31/2020 12:42:53

I went searching myself for this this week and I found that method two and three did not work at least not for me. I have not tried method one yet.

I did however go to the website and went to content and downloaded there and then converted.

Just thought I would share that option for others. Thanks!

11/2/2020 10:22:13
Thank you for your comments. Can you please tell us is there any error message when you using method 1 and 2? We've tested these methods listed in this article. They are all working fine.
Also, if you have any better method, please kindly share it here.
Have  a nice day.
10/31/2020 17:40:00

Thanks very much Hillary and the whole Epubor team!

Method 1 worked great on my mac.

I was disappointed when I saw a couple of months ago that the latest Kindle update had thwarted Epubor, but I optimistic that you'd crack that soon, which you have.

I use Epubor mainly for academic books relevant to my work. I listen to many of them (commuting, walking etc.) using a text to voice app which is really good, but that app needs pdfs, not stupid restricted DRMed files. I don't hand the pdfs out, I don't upload them for pirating, all I need is to turn the books I spend money on to be in the format I can most easily actually read them.

So thanks again Epubor, love your work!

11/1/2020 04:00:18
what text to voice app do you use?
11/2/2020 10:17:57
You are welcome. We are glad to be helpful. Have a nice day.
11/2/2020 02:15:31
So I tried this as I have purchased from you a few moths ago Epubor KCR Converter which then stopped working.  However, it appears that you now want me to BUY your Epubor Ultimate in order for this to work on Catalina 10.15 is that correct?
11/2/2020 10:20:14
Thank you for using our software. We are sincerely sorry about the kcr converter. This is mainly because the kindle cloud reader doesn't support ebook download.
Anyway, if you have purchased kcr converter, please contact our customer support (support@epubor.com) to request the software exchange. They can help you change you license to Ultimate.
Any more problem, please feel free to contact us. Have a nice day.
11/7/2020 22:24:39
Thank you but they still charged me.. just offered a discount.
11/9/2020 10:28:05
That's because epubor ultimate is much expensive than Epubor kcr converter.
11/15/2020 02:16:53
I'm extremely disappointed in the inability of Epubor's Ultimate to convert a new Amazon Kindle book into pdf format using your Ultimate version software. In addition, your provided fixes are convoluted and time consuming and I failed to convert the book, regardless. Your software has worked well in the past, but now I am forced to find another software that can resolve this issue. I realize it's challenging to keep up with Amazons software changes, and that's why I'll look elsewhere for another company. I've used your software for years, but now it's time to look elsewhere for solutions.
11/16/2020 09:12:46
Thank you for your comments. But all the methods in this article is tested. If you can not convert your kindle books, you can contact customer team to get further assistance.
11/19/2020 22:50:10
Please let us know which one you find. Will jump aboard that train too.
11/19/2020 22:49:10
I'm following step one and in front of my password I'm getting a key icon which doesn't allow me to input my password. What do?
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