Autoruns vs y-cruncher

Autoruns shows programs and drivers configured to run during Windows boot, login, or when certain built-in Windows applications start. It reports startup items from locations such as the Startup folder, Registry keys, Explorer extensions, services, scheduled tasks, and Winlogon entries. Users can hide signed Microsoft entries to focus on third-party items, inspect startup images configured for other accounts, and disable an entry or delete its configuration. Scan options include signature verification and VirusTotal hash checks; submitting files not previously scanned requires the upload option, and VirusTotal features require accepting its terms. The download includes Autorunsc, a command-line version that can output CSV or tab-delimited data, verify signatures, and scan an offline Windows system. The Autoruns and Autorunsc download is listed as 3 MB, and Microsoft offers a Sysinternals Live option. Autoruns costs nothing, with no limit on installation or use on devices owned or supported by the user, but no redistribution license. Microsoft says Sysinternals tools are provided as is without official support and points users to a community forum.

y-cruncher calculates Pi and other mathematical constants to trillions of digits, and also serves as a multithreaded benchmark and stress-testing program for overclockers and hardware enthusiasts. For most constants, it uses separate algorithms to compute and verify results. Its multithreading uses modern multi-core processors without significantly increasing memory usage, and it supports SIMD instruction sets such as SSE, AVX and AVX512. For computations that exceed available memory, y-cruncher manages swap space and can use multiple drives for disk swapping. It can detect and correct minor errors attributed to hardware instability or software bugs. Windows and Linux downloads are available; the listed requirements are Windows 8 or later, 64-bit Linux, and an x86 or x64 processor. The Linux static build lacks TBB and NUMA binding, while the dynamic build supports all features but is less portable. The free plan permits non-commercial and academic use; commercial-purpose licensing may be available by contacting the developer. Major algorithm redesigns and rewrites are on hiatus, though maintenance and some processor optimizations continue.