i just purchased an acer E5-475G-53IQ, i got no problem after some couple week usage, then suddenly at around early month this year, im started getting some trouble, like slow boot up sometimes(ex:10 times boot up, only 2/3 times slow) or sometimes i get some kind of weird trouble that i never got before which is hanging on the windows 10 screen, i couldnt do anything, it only freeze and didnt respond to any kind of action, i already check for virus, malware, hdd defragment, and it still couldnt fix it, i wanna upgrade the hardware, but is that void the warranty? as there is a sticker that cover one of the screw.
acer E5-475G-53IQ spec:
intel i5-7200u 2.5ghz base, turbo boost 3.1ghz
4gb ddr4 2133mhz ram