I'm not sure if this is the place to put this thread, but I couldn't figure out where else it goes.

For a while, my Thinkpad T500 running Win10 has been acting up. Sometimes when prompted to open a file in a software, when you click the drop down menu (where you can change which file type you are looking for) everything will be unresponsive for a second before flashing back to how it was. That was't a very good explanation, but it's kind of hard to describe. I ran my laptop without my battery (using an adapter) and it worker better, so I know that my battery is a problem. But sometimes when I open an application, it will open, flash and flicker the Not Responding in the top bar next to the name of the program, and then it will open successfully. There's also times when my mouse will vigorously flicker between the busy icon and the normal icon.

I've also been having a problem with the battery icon disappearing from the dock after starting my computer. Each time I boot up the laptop I have to go to Control Panel > Device Manager > Batteries > Microsoft ACPI-Compliant Control Method Battery and disable it then re-enable it.

I'm not sure which of these is a hardware problem and which are software problems, but I'm hoping someone could help me.