Bought kingston highspeed 32gb pendrive....but available space showing is only 28gb.

The explanation is that pendrive manufacturers count bytes differently from the way that computers do. The pendrive manufacturers count in thousdands so that 32GB is equal to 32,000,000,000 bytes. Computers, however count in multiples of 1024 (= 2^10), so that a pendrive marked as '32GB' only contains 29.80232238769531 GB as the computer counts them.

You should ask/call Kingston customer service about this lack of GB... Is it specific problem of your product or is it mistake of writing 32GB...

I read about this when buying SD cards the last time I need them and some people said that even though is says it was such and such It was actually lower.. My friend and I then purchases 2 of the sames size cards but different brands.. and when they came we discovered his had a lot less than mine. but both were still under the amount they were supposed to be. I think it is a common practice to rip people off.

Did you buy it online? Or offline