![]() Memory hardware errors can cause major application crashes, blue-screens of death (BSODs), and data corruption. It has a graphical interface, and can be run from within Windows. The Mac must also be using macOS High Sierra or later, the latest version of macOS Sierra, or the latest version of OS X El Capitan. TechPowerUp Memtest64 is a free lightweight, standalone utility that lets you check your system memory for problems at the hardware-level. To download an installer suitable for creating a bootable installer, use the App Store or use a web browser to download from a compatible Mac. Follow the onscreen installation instructions.Ī bootable installer can be useful if you want to install macOS on multiple computers without downloading the installer each time, or when you can't install using the other methods. Open your Applications folder and double-click the macOS installer, named Install. pkg file, then follow the onscreen instructions to install the macOS installer into your Applications folder. dmg file to open it and see the package (.pkg) file within.ĭouble-click the. MemTest86 boots from a USB flash drive and tests the RAM in your computer for faults using a series of comprehensive algorithms and test patterns. Use these links to download a macOS disk image (.dmg) file.ĭouble-click the. Free Download PassMark MemTest86 Pro for Windows is the original, free, stand-alone memory testing software for x86 computers. ![]()
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