My laptop has been shutting down without warning(like desktop when power goes off), even when the battery charge is at 75%. At first I thought it was because of windows 10 updates so I uninstalled it and installed windows 7 but that did not solve the problem. At times it also says plugged in but not charging. Battery test using Hp support assistant says its functioning propery but needs calibration. I tried the calibration process but it shut down before the process was finished. Kindly help?
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