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).
- 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 USB Drive for Windows
Download for Mac OS/Linux
Download Memtest86 v4 Free
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: April 21, 2023
Current Version: 10.4.1000 / 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