The most annoying bloatware I found in a laptop is HP Analytics. Its only purpose is to get data from you and sell it. It works in the background and you only notice it because the laptop is slow for unknown reasons. To “delete it”, you must disable its service. If you want, you can change its folders permissions so you can delete them as admin. But it will install itself again in a few weeks and you will have to remove it once more, unless you never update Windows and drivers. HP Analytics works like a malware, but antivirus won’t detect it. And you can find this on every HP modern laptop, so it’s very common.