The good news is that our technical team has already cracked the Microsoft Store Kindle app. Now download the latest version of Epubor Ultimate for free to crack your Microsoft Store Kindle books.
Please ensure your kindle books are downloaded via Microsoft store Kindle app.
If you are still using the legacy kindle app, please follow this instructions to remove kindle drm.
A new Kindle app is coming
A new and improved Kindle app for Windows 11 will be available in the Microsoft Store later this month.
This app will no longer be available after June 30, 2026.
This is the pop up message I received in English when the Kindle for PC app updated itself to 2.9.1 (71006).
Amazon has officially announced that the classic Kindle for PC (Win32 version) will be retired on June 30, 2026. While a new version is coming to the Microsoft Store, this change has significant implications for power users, researchers, and those who maintain personal digital archives. If you still want to revert to old kindle for PC for backing up kindle books, just do it before that date.
The Core Changes of Kindle for PC App
End of Old Kindle for PC Support:
After June 30, the current standalone Kindle for PC app will no longer be supported and will likely lose the ability to download new content.
The New Kindle for PC will launch:
Amazon is launching a new Kindle App specifically for Windows 11, available exclusively through the Microsoft Store.
System Requirements for new Kindle for PC:
Users still on Windows 10 may find themselves locked out of the new desktop experience, as the new app is optimized for the Windows 11 architecture.
Why This Matters for Your Kindle Library
For the average reader, this is a simple app update. However, for the technical community and those concerned with Digital Rights Management (DRM), this is a major shift.
Closing the "Legacy" Loophole:
The current Kindle for PC v2.9.x (including version 2.8.X) remains built on the 32-bit (Win32) architecture.
Even if you are running a 64-bit Windows operating system, this software still relies on a legacy 32-bit framework. This is one of the primary reasons why Amazon plans to fully retire it on June 30, 2026—it can no longer keep pace with the security and performance standards of modern 64-bit systems, specifically Windows 11.
Because it utilizes this older 32-bit architecture, there are certain "technical gaps" in how the app handles modern encryption, such as the newer KFX format. These gaps serve as the very foundation that allows many current backup tools and Calibre plugins to function.
Tougher Kindle DRM :
In contrast, Amazon’s upcoming "New Version" will be a 64-bit Microsoft Store app designed exclusively for Windows 11. This new architecture is expected to integrate much stronger hardware-level encryption (such as TPM 2.0--Trusted Platform Module). This means that existing backup methods and format conversion workflows will likely become completely obsolete after June 2026.
Kindle Format changes
Expect a continued shift toward the KFX format, which is significantly harder to convert than older KF8 or Mobi formats. While this change hasn’t been officially confirmed, many users on Reddit and MobileRead believe this is the likely trend.
Immediate Actions to Take--Backup Your Kindle Library to drm-free epub files
If you value having a local, DRM-free backup of your library, you must act before the June 30 deadline.
Step 1: Download Your Kindle Library Now:
Use your current Kindle for PC setup to download all your purchased kindle titles immediately.
Step 2: Remove drm from Kindle books:
It is not neccessary to download kindle books to your local storage. The most important things you should do is removing drm from kindle books before they change the drm scheme. For now, Epubor Ultimate is compatible with the Kindle for PC (Old and latest Kindle for PC), kindle eink device and kindle for Mac. The detailed guide on removing kindle drm on pc, eink device and mac is here.
Extended Knowledge: Kindle App Updated to Close Every Loophole
Amazon didn’t just flip a single switch—they spent the entirety of 2025 systematically dismantling every remaining DRM loophole.
February 2025 — USB downloads removed
Amazon eliminated the “Download & Transfer via USB” option from the Manage Your Content and Devices page. Without the ability to download a local file directly, the traditional DeDRM entry point vanished overnight, leaving Calibre users with no file to import.
April 2025 — Legacy Kindle for PC blocked
Many users relied on older versions of Kindle for PC (notably v2.4.0 and earlier) because newer releases introduced stronger encryption. In April, Amazon ceased delivering new purchases to these legacy versions. Any book bought after April 22, 2025, simply will not download to these older clients.
September 2025 — Firmware 5.18.5 hardened device security
Newer Kindle hardware—including the 11th and 12th generation Paperwhite, Colorsoft, and Scribe—adopted a hardened encryption system. Currently, no publicly available open-source tools can bypass this updated security despite ongoing analysis.
March 2026 — Older devices brought into the fold
Amazon extended these new DRM protections to older Kindles running Firmware 5.16.2.1.1. Devices that were once the reliable standard for DRM removal are rapidly losing compatibility as Amazon synchronizes security across its entire fleet.
The bottom line
While standard plugins struggle, Epubor Ultimate continues to support the latest versions of Kindle for PC and Mac, as well as various e-ink devices. With more than 10 years of experience in the Kindle DeDRM field, we are always the first one to support the latest kindle update.
Conclusion
The “golden age” of easy Kindle backups is coming to an end. While Amazon presents this as a “new and improved” experience, it also reflects a broader move to tighten control over its ecosystem. Make sure your library is backed up before Kindle for PC is forcefully updated.
Iris Yan Marketing Architect at Epubor since 2017, drives the brand’s product design, advertising, and all-channel strategy.
This is awful news. I would gladly buy else where, however many of the books I want aren't available at Kobo or Google. The library is near useless because they don't have the books I want either. I really hate Amazon for doing this. I like having physical copies of my books and reading my books on my own device. I do not want to be trapped into reading only with the Kindle App. I hate it's layout. I'm constantly changing pages because there are so few words on each page. My book reader allows me to change the layout to how I want. I can't do that on Kindle.
What is this really going to mean for Epubor? Will it be the end or will you continue to work on ways around to de-DRM books using the new Kindle?
Same thing for me. They shut me down and I cant download my books.
So I downloaded the version that Epubor ask me, but it cant decrypt the books.
We will try our best to help you backup your purchased kindle books for personal use.
wird es Antworten auf die vielen die bereits gestellt wurden gebeten?
and what does this mean for windows 10 pcs?
Everything is working perfectly for now, and I will continue to regularly purchase new Kindle e-books from Amazon. However, on or around 15 June, 15 days before the current Kindle 2.9 expires, I will temporarily stop buying Kindle-format books and will only buy EPUB-format books (i.e. from somewhere other than Amazon) until Epubor Ultimate is updated to efficiently decrypt and convert the new Kindle books.
I have faith in Epubor and am not really worried about the future. I'm pretty sure that the new version of Epubor Ultimate won't be ready for several weeks or months, it seems obvious to me. The technicians and developers will need time to analyse the new Kindle ebook format and develop new code. They will probably have to work extremely hard and pull quite a few all-nighters to get it done, as this massive challenge has suddenly landed in their lap. Please, everyone, let's be patient. They have done a remarkable job for fifteen years and will not let us down. We need to let them get on with their work in peace so they can stay fully focused. I suggest their communications team publishes a short update message on the website (not only on the social networks as I don't use them like many other people who as me have personaly faced criminal facts on these channels or for any other reason) every fortnight or so to let us know they’re making progress and reassure us. Thank you so much to all Epubor teams!
Albert
The new update doesn't work.
I get the KFX error
Had to install the new version and there is no option to pick where to put the downloads on the computer.
spoke to customer service via chat and she gave me the following info about where it is on the computer:
user/appdata/local/packages
press windows+RType-%USER PROFILE%\My Documents\My Kindle Content
Can anyone help?
I just tried the new version 3.0.16.631 but I get the error Kindle KFX.
I have tried the KFX Error Fix that appears in the dialog box but it still comes up with the error Kindle KFX on any book that I downloaded.
I keep getting the message that my laptop will not support the new kindle reader. That's a sure fire way to eliminate any chances for me to download books, especially since the old reader will be discontinued. When I plugged my kindle into my laptop, it showed there are 0 files on it. So I guess it's got something blocking data transfers. If I can't run the new pc reader after June 30, is there any point in my owning Epubor? is there any chance that in the future it can help get around the architecture problem that won't support the new Kindle reader? It makes me incredibly angry that they continue to make it harder to own and access books. I think I saw something about eventually they will stop supporting the older hardware, too. I don't buy a new car every year. I don't buy a new laptop every year. I won't buy a new kindle every year (or every 6 months!), either.
I think this is an example of technology used against us as consumers. Why is an ebook purchase only purchasing the right to read it, only on their hardware? When you buy a printed book, it's truly yours. You can read it just about any time, anywhere. You can loan it to a friend. You could sell it to someone. And all of this without violating copyright. I liked the fact that I could have a large library at my fingertips without having books in every corner of my house. But that is what I choose over Amazon's greed.
Erst einmal vielen Dank, dass ihr uns diese Möglichkeit bietet und ständig daran arbeitet, dass es "up to date" bleibt.
Aktuell habe ich allerdings ein Problem:
Nachdem ich die alte 'Kindle for PC-App' vom Laptop gelöscht und die neue aus dem Microsoft Store heruntergeladen habe, kann ich den notwendigen Ordner C:\Users\beate\DOCUME~1\MYKIND~1 nirgends mehr finden.
Habt ihr eine Idee, wo der Fehler liegen könnte?
Google weiß leider auch keinen Rat....
Ich bin zwar kein absoluter Technik-Freak, aber bisher habe ich mich immer ganz gut zurechtgefunden, wenn mich ein Thema interessiert.
Hallo Beate,
Die Antwort wäre ganz einfach zu geben, denn Epubor hat diese Antwort kürzlich auf einer anderen Seite gegeben. Aber Epubor lässt nicht zu, dass unsere Antworten eine URL enthalten … selbst wenn diese URL zur Epubor-Website gehört! Ich wollte dir die Antwort geben, indem ich dich auf diese andere Seite weiterleite … aber das geht nicht! Es wäre doch deutlich praktischer, hier zu diskutieren, wenn Epubor zumindest zulassen würde, dass wir die URLs von Epubor verwenden dürfen! Danke, Epubor, dass ihr euch bemüht, zumindest zuzulassen, dass wir die URLs der Epubor-Website verwenden dürfen!
Hi Beate,
It would be very easy to give you the answer, because Epubor recently provided it on another page. But Epubor doesn't allow our responses to include a URL... even when that URL belongs to Epubor's own site! I wanted to give you the answer by directing you to that other EPUBOR's page… but it’s impossible! It would be much more convenient to have this conversation here if Epubor would at least allow us to use Epubor’s URLs! Thank you, Epubor, for making an effort to at least allow us to use URLs from the Epubor website!
Die Dateien befinden sich hier:
C:\Users\your_username\AppData\Local\Packages\AMZNKindle.AmazonKindleReadingApp_m1sc522ngdk36\LocalState\Classic\Content
Aber Achtung: Sie müssen den Explorer zunächst so konfigurieren, dass er versteckte Dateien und Ordner anzeigt.
The files are located here:
C:\Users\your_username\AppData\Local\Packages\AMZNKindle.AmazonKindleReadingApp_m1sc522ngdk36\LocalState\Classic\Content
But be aware that you must first configure File Explorer to show hidden files and folders.
Allerdings habe ich das gleiche Problem wie Ruth und rkxry, dass, obwohl ich die neueste Software von epubor .631 habe, es mir KFX-Fehler anzeigt.
Aber ich bin mal zuversichtlich, dass uns zeitnah eine noch aktuellere Version zur Verfügung steht, die diese Sperre knackt.
Ja, es ist klar, dass das Problem noch nicht gelöst ist.
Ich für meinen Teil mache vorerst keine Versuche, sondern warte lieber ab.
Amazon hatte angekündigt, dass die neue Kindle-App am 1. Juli bereitstehen würde (die alte App läuft am 30. Juni aus), aber es steht fest, dass die DRM-Verschlüsselungen für Downloads mit der alten Version bereits ungültig sind, wobei diese alte Kindle-App nur noch zum Lesen von Inhalten funktioniert, die bereits vor dem 15. Juni heruntergeladen wurden. Wir befinden uns in einer Übergangsphase, in der alles nur noch halbwegs funktioniert (sowohl die Downloads in den Kindle als auch die Konvertierungen in Ultimate), und ich denke, dass diese Übergangsphase mindestens bis Mitte Juli, wenn nicht sogar bis Ende Juli andauern wird.
Ich halte es für besser, in aller Ruhe auf die offizielle Veröffentlichung der neuen Kindle-App zu warten UND darauf, dass Epubor seine Arbeiten zur Aktualisierung von Ultimate in aller Ruhe abschließen kann. In der Zwischenzeit lese ich vorerst weiter einige Bücher, die ich bereits Anfang Juni (also vor einem Monat) in meiner Kindle-App hatte und die ich sofort in Ultimate konvertiert hatte, bevor das Problem auftrat, um sie als EPUB im Epubor Reader und vor allem in Thorium lesen zu können.
Yes, it's clear that the problem isn't over yet.
As for me, I'm not trying anything out right now; I'd rather just wait and see.
Amazon had announced that their new Kindle app would be ready by July 1 (with the old app being discontinued on June 30), but it’s certain that the DRM encryption used for downloads with the old version is already invalid—though the old Kindle app remains operational solely for reading content downloaded before June 15. We’re in a transition period where everything is working a bit glitchily (both downloads to Kindle and conversions in Ultimate), and I think we’ll remain in this transition period at least until mid-July, if not late July.
I think it’s best to just wait patiently for the official release of the new Kindle app AND for Epubor to calmly finish its work on upgrading Ultimate. In the meantime, for now I’m continuing to read a few books that I already had in my Kindle app in early June (so about a month ago) and that I had converted right away in Ultimate before the problem started, so I can read them as EPUBs in Epubor Reader and especially in Thorium.
Hello!
Yes.
And it works nice!
Thanks, thanks, thanks!
Just a mention: in the list of the available Kindle books, instead of having only their ASIN visible, could we have again the title of the ebook as in the former version? It is written in clair, ha ha, in the file ...\LocalState\telemetry\outbox.db
If you need more assistance, please feel free to contact us at support@epubor.com.