Always as in always save your important sh!t onto a stick or a disk and keep it somewhere fireproof.
A mate of mines son just had an open party a few nights ago,had his whole essay of months of work on his computer .someone changed everything on his computer, passwords the whole nine yards, he has to pay someone from Dell 400 bucks to come in and open it up cause the Id and serial number on the tape sticker had been worn off it too.
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