System startup problem after reinstalling the system on the computer

I reinstalled the system some time ago, the boot speed is slow, sometimes it will take more than two minutes, most of it is more than a minute. But sometimes it's about 40 seconds. There are not many startup items for my computer, just 30. The basic items of the system are only 26, and the others are 360 ​​antivirus and the like. I don't know what's going on, solve it. In addition, my computer configuration is not very bad. Although it is a previously assembled computer, it is also a dual-core computer configuration. It is reasonable to say that the speed will not be so slow. User analysis and answer: 1. If you think 360 is not easy to use, I suggest you try QQ computer housekeeper, I personally feel pretty good. Remember, the startup items that can be optimized are optimized as much as possible, leaving no unnecessary startup items. 2. If you say this, it is not a problem with the startup item. Sometimes it is sometimes slow. Change the system of the lite version. 3. Not defying 360, seeking truth from facts, as long as there are 360 ​​things in the computer, your system will not be fast. In addition, your startup items are a bit more, streamline some. In the previous paragraph, my sister’s computer had a problem. The cousin said that it often does not start up, sometimes it restarts for a while and suddenly restarts, the boot speed is slow, and sometimes the blue screen ==, let me help. After I went there, I found that there were a lot of problems. First, some software registry residues that were originally installed and uninstalled conflicted with 360. After cleaning up and cleaning up, it was still slow and suddenly restarted. After checking the hardware, I found that all the 360s were uninstalled (in other words, the cousin installed 360 full set of equipment including the browser), helped her install ESET anti-virus software and Jinshan Guardian, the problem immediately solved, the problem of Shenma disappeared. In a few months, the system is stable and normal, and the boot speed is much faster. I remember that a few months ago someone had done a test that dragged down the system, and 360 gloriously ranked first.