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What’s renderer-test.exe? Is it safe or a virus?

renderer-test.exe is a component of the Kindle for PC application developed by Amazon. Its primary function is to handle the rendering of eBooks in the KFX format, which is Amazon's enhanced eBook format offering features like improved typography and layout. This executable is responsible for processing and displaying these advanced formatting features within the Kindle application.​

If you have Kindle for PC installed on your system, the presence of renderer-test.exe is expected. It's a legitimate part of the application and is necessary for viewing eBooks that utilize the KFX format.

Researched by Carl @ SpyShelter Labs

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A Trojan is a harmful software that pretends to be a legitimate program or file to deceive users into downloading it. It can steal personal information, damage files, or give hackers control over the infected device.

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More about renderer-test.exe on WINDOWS

Who makes renderer-test.exe?

We’ve found Amazon.com Services LLC should be the publisher of renderer-test.exe.

How do we know? Our SpyShelter cybersecurity labs focuses on monitoring different types of Windows PC executables and their behaviors for our popular SpyShelter Antispyware software. Learn more about us, and how our cybersecurity team studies Windows PC executables/processes.

What does it mean if someone is the publisher of a PC .exe (executable or process)?

The publisher of an executable is the entity responsible for its distribution and authenticity. Most processes/executables on your PC should be signed. The signature on the executable should have been verified through a third party whose job it is to make sure the entity is who it says it is. Find an unsigned executable? You should consider scanning any completely unsigned .exe on your PC.

Last updated: April 30, 2025

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Why should you trust us?

Our team at SpyShelter has been studying Windows PC executables for over 15 years, to help fight against spyware, malware, and other threats. SpyShelter has been featured in publications like The Register, PC Magazine, and many others. Now we’re working to share free, actionable, and easy to understand information about Windows executables (processes) with the world, to help as many people as possible keep their devices safe. Learn more about us on our "About SpyShelter” page.

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