MemTest64

What MemTest64 is

MemTest64 is a free Windows utility for checking system memory for hardware-level problems. It runs in Windows through a graphical interface and loads physical memory with test patterns, using detection algorithms to identify errors automatically. You choose how much memory to test, which lets you limit the memory allocated to the check and reduce its effect on other work. The utility runs without a reboot or DOS mode and does not require administrator privileges. It also needs no installation and makes no registry modifications. MemTest64 supports modern processors, including Intel Core and AMD Ryzen. Its supported systems are 64-bit editions of Windows XP, Vista, 7, 8, 10, and 11. The maker says it can help overclockers tune memory timings and DRAM speeds to maximize performance. TechPowerUp lists version 1.0, dated April 20, 2017, and the product page links to a support forum. The listed plan is free; the utility has no free trial.

Who it suits

MemTest64 suits Windows users who want to check system memory for hardware-level errors without rebooting or installing software. Overclockers may also find it useful when adjusting memory timings and DRAM speeds.

Limits

MemTest64 is limited to 64-bit versions of Windows XP, Vista, 7, 8, 10, and 11.

Getting started

1. Open the MemTest64 website.
2. Download and run the standalone utility in Windows.
3. Choose how much memory to test.
4. Run the memory check and review automatically detected errors.

Verdict

Choose MemTest64 if you need a free way to check memory from within a 64-bit Windows system, with control over how much memory is tested. It may also suit overclockers adjusting memory timings and DRAM speeds. Look elsewhere if you need a tool for another platform.