Windows 11 has been criticized for its high system requirements, increased overhead, and user interface regressions. A test by TrigrZolt compared six generations of Windows operating systems using six Lenovo ThinkPad X220 laptops, which were not officially supported for Windows 11. In startup time tests, Windows 11 was the slowest, while Windows 8.1 was the fastest. In audio file processing, Windows 11 ranked fifth, and in video rendering, it again placed last. It secured second place in file transfer speeds but was fourth in a malware scan test. Benchmark tests showed Windows 11 in fourth place for both single-threaded and multi-threaded CPU performance. In CrystalDiskMark, it tied for third place, and in Cinebench R10, it was fourth in single-core tests. The outdated hardware used for testing and the absence of an SSD may have skewed the results, which were deemed more historical than practical. A more suitable test would involve contemporary laptops to provide a fairer comparison.