Keep in mind that electrolytic caps can have tolerances from -20 to +80% of the nominal value, so for a cap of 10uF anything between 8uF to 18uF is well in spec. That cap you have measured is likely just fine as far as capacitance is concerned. Also the accuracy of your cheap meter/tester likely sucks for these large capacitance values and there will be significant errors.
Worse, measuring the capacitance won't give you an indication whether the capacitor is good or bad - you must measure ESR. A bad bulging capacitor will happily measure its nominal capacitance despite having sky-high series resistance due to dried out/boiled off electrolyte. Such capacitor is essentially completely non-functional in the power supply but if you only measure capacitance, you will never know. That is why capacitance meters are pretty much useless for repairing switch-mode power supplies unless they measure ESR as well.
BTW, am I seeing right that the caps are CapXon brand? If yes, don't even bother to measure them - just replace all of them, even the large mains rated input cap. CapXon has the nickname "crapxon" for a very good reason - those capacitors have only one thing reliable about them - they reliably die, usually right after the warranty of the item is out.