(Image credit: Microsoft) Microsoft has a checkered past when it comes to upselling its own products and services through Windows, and now it's once again been caught pushing Bing on Windows users as a healthier alternative to other search engines.At least, that's what you have to assume when you hear that the company's PC Manager app, which markets itself as a utility app for maintaining your PC, has a repair tool that recommends you reset your Edge search engine to Bing. This tip appears when ...