I couldnt register my computer and it got de-activated some how
It might caused by some operations erasing your reg info. If you have a backup pc image, a restoration from a register statues can disappear activate problem.
Another situation is that you have Windows in PC when you bought it. So your Windows license is commercial license and one license can be used on 10 or 100 or more PCs. If someone copy the license and use it to their other computers and license reaches register limit, then you won't be able to reactive again with it. Suggest you to come to your PC vendor and ask them to give you one.
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