When IE 11 was released, I downloaded it to my computer and began using it. I almost always upgrade to the latest version of IE right away as it seems to get better and better on every iteration. Unfortunately, v11 has too many issues for me (Win7 64bit) and I uninstalled it - a first for any version of IE for me.
First of all, it has a habit of crashing - the dialog box telling you that Internet Explorer has detected a problem and was trying to find a solution. When that dialog box appears, you cannot do anything else on the computer until it is done as the dialog box is on top of everything else running. You have to wait until it is finished, only to tell you that it could not find a solution and that it was going to close or restart the application. This would occur with alarming frequency, so much so that it became impossible to do work at times.
Secondly, it does something unexpected with some websites, continuously refreshing the page or arbitrarily invoking the "back" button. For instance, on the Yahoo Mail website, closing an open email will not only close the email, but send you back a page - most likely right out of the Yahoo Mail website. Quite frustrating. I have tried compatibility settings but this does not resolve the problem.
For now, I cannot run IE11 and will let it "bake" for a while before attempting to install it again. It has a lot of nice features but if it continuously crashes AND makes some site unstable, I'm out as they say on Shark Tank.