crwdns2934241:0crwdne2934241:0 Alpha peter

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Why is my system not booting

crwdns2934249:0crwdne2934249:0:

I was working with my HP laptop I just notice strange sound an it just shut down itself since then I cannot use it,  it cannot start. So please how can I fix it?

crwdns2866306:0crwdne2866306:0:

HP 300 Series

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open