I am on Windows 10 and a couple times after turning on my PC I have experience this random bug but I cannot confirm if it's hardware or software related because both times I just rebooted my PC once it occurred. Basically what happens is any interaction with my mouse or keyboard will launch the default browser and give an automated string of text from cortana to search bing. It will repeat and give the same search results for "get help with file explorer in windows 10"
If anyone can duplicate these results please comment below.
I think it might be a keyboard shortcut outputting but?
Here are the results: