No. In facts, it is not possible to test “everything” on any computers, simply because there is no tools to test everything. Some tests are time consuming, i.e. a full RAM or hard drive test will take hours to complete. Most testing tools are advisory only and not guaranteed to be accurate, i.e. video card and processor stress tests are not guaranteed to be accurate, there are several hard drive tests (short, long tests, read write tests) that it is not practical to do all hard drive tests. Some parts may have no existing tools to test, i.e. keyboard, mouse, speakers. It will be too time consuming and impractical to perform all tests on every component. Our technicians will run specific tests based on what we have observed and the problems that customers advise us. Our repairs and guarantee will be limited to the mentioned problems that we were aware of and agreed to be fixed only.