MemTest86+ vs PC-Doctor Toolbox

MemTest86+ is a free, open-source stand-alone memory tester for x86, x86-64, ARM AArch64, and LoongArch64 computers. It uses algorithms including moving inversions and Modulo-20 to detect memory failures and investigate crashes, freezes, or system instability. The tester can access almost all computer memory without operating-system memory or UEFI library restrictions. It can run from legacy or UEFI BIOS, through Linux boot protocols, or from a FAT32 USB flash drive, CD-ROM, or PXE network boot. For PXE, the project documents different binaries for BIOS and UEFI boot as iPXE or PXELINUX payloads. Testing continues indefinitely, with the pass counter advancing after all selected tests finish. The software is licensed under GNU GPL version 2, with no additional restrictions on private or commercial use. Stable and nightly binaries are available, though nightly builds are generated automatically and are untested and unsupported. Secure Boot must be temporarily disabled because the binary is not signed by Microsoft. USB drivers remain in progress, and not all USB devices are supported.

PC-Doctor Toolbox monitors Windows PC health and provides hardware diagnostics, system information, history, troubleshooting, and monitoring tools. Its library contains more than 300 tests for storage, audio, graphics, networking, memory, CPU, systemboard, and peripherals. The My Device Dashboard shows overall health, alerts, and real-time system metrics; users can also run Quick or Full Scans and use a Blue Screen Troubleshooter.

System History tracks hardware scans, system changes, unexpected shutdowns, restore points, and application crashes. Toolbox Remote provides a cloud dashboard for monitoring Toolbox-equipped PCs remotely, including test results, blue screens, crash events, and system details. Security monitoring checks whether antivirus solutions are enabled and up to date, while Windows monitoring includes update settings, last check time, and recently installed updates. The product page lists support for Windows 10 and Windows 11 64-bit. Free personal use covers up to five systems, but requires a Toolbox Remote account and opting in to technical and interaction data sharing with PC-Doctor. The product supports multiple languages, including English, Dutch, French, German, Italian, Japanese, Portuguese, and Spanish.