I use Official Yacoin Windows Client and Wallet and all coins are fine.

[alex_fun]

Hey folks,

Here is the developer thread https://bitcointalk.org/index.php?topic=196196.0

You can download official windows client from there.

Stick with official stuff imo

[zhaojundong]

in yacoin.org
the windows client download link also is https://mega.co.nz/#!5wgDnKyZ!QLfWTXNRMRTwmb60rfpuFgzH48BCl4fpwb8paeAaqRs
but before more people confirm it's no problem
i remove the download link from yacoin.org

[sugarwhale]

my coins haven't been stolen yet

[relm9]

in yacoin.org
the windows client download link also is https://mega.co.nz/#!5wgDnKyZ!QLfWTXNRMRTwmb60rfpuFgzH48BCl4fpwb8paeAaqRs
but before more people confirm it's no problem
i remove the download link from yacoin.org

Seeing as that's not an official source, you should link to the bitcointalk post for download.