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MemTest86 is a free, reliable memory testing software for Windows, MacOS, and Linux. It’s designed to test and stress test an x86 architecture computer’s random access memory (RAM) for errors, using a series of comprehensive algorithms and test patterns.

Unreliable RAM can cause a multitude of problems. Corrupted data, crashes and unexplained behavior. Bad RAM is one of the most frustrating computer problems to have as symptoms are often random and hard to pin down.

MemTest86 does NOT run on Windows. To use the software, you need to copy the files to a flash drive. This wipes the existing content of the flash drive but makes the drive bootable. Often, you need to change the boot order in BIOS to select the flash drive as the boot drive. Once booted, MemTest86 runs through thirteen different tests as well as reports on the specifications of the RAM installed in the machine.

MemTest86 is available in three editions: Free, Professional and Site (Compare editions).

Key Features:

  • Professional memory testing tool
  • 13 Different RAM testing algorithms
  • DDR2/DDR3/DDR4 RAM support
  • XMP – high-performance memory profiles
  • Scalable, disk-less provisioning from a single PXE server
  • Support for error-correcting code RAM
  • Self-booting off USB or CD
  • Bootable from USB/CD
  • UEFI BIOS Support
  • Secure boot

Download Memtest86 v10 Free

Download bootable CD (ISO format) for Windows

Download bootable USB Drive for Windows

Download for Mac OS/Linux

Download Memtest86 v4 Free

Download bootable CD (ISO format) for Windows
Download bootable USB Drive for Windows Download bootable CD (ISO format) for Mac OS/Linux

Download bootable USB Drive for Mac OS/Linux

Note: MemTest86 V9 images support only UEFI boot. On machines that don’t support UEFI, MemTest86 will not boot. Please download the older V4 BIOS release of MemTest86 instead.

Last Update: February 08, 2024

Current Version: 10.7.1000 / 4.3.7

License: Freeware / Shareware

Languages: Multiple Languages

Supported Operating Systems:
Windows XP / Vista / 7 / 8 / 8.1 / 10 / 11 (32-Bit)
Mac OS X

Developer: PassMark Software


Disclaimer: The direct download links we provided to you for this software are from the official author's website, therefore we can't guarantee safety, availability, or download speeds. We will look into all download options for your software: online installer, full offline installer (mostly exe or msi, and in rare cases - iso, or torrent), or portable edition (mostly zip, or rar). Moreover, we don't and we won't provide any pirated/illegal versions or tools. We recommend that you avoid using these methods as these methods can harm your device. If you like this software, buy it to support its developers.