You should be good to go, as it works great for me now for months. MAKE SURE to add synapse to your windows firewall expections, as same with antivirus programs. Win 8: Open synapse properties, go to compability, run program with windows 7, and your good to go. Heres the solution, i had problem with windows 8 compability with synapse.

I am running windows 7 64bit and can't seem to find a solution anywhere else so help would be appreciated thanks.

I have the razer black widow ultimate 2013 and a razer nostromo plugged in. I have tried un-installing and re-installing everything I have to do with razer on my computer but to no avail. If I look in the services/processes tab of task manager it doesn't show up in there so it definitely isn't running. My mouse cursor indicates that it is loading something for a second or two then stops. When I try and start razer synapse 2.0 it does nothing. It's worth a try if you've tried everything else. However i felt i needed to share what i did because Synapse 2.0 has been causing me headaches for weeks before i managed to fix it. While this fix worked for me, it might not work for you. NET framework files are too damaged however, it might ask you to insert your windows CD, mount your ISO or which ever format you have your OS backup on to get access to bigger, more important files. Just let the scan run until it's finished > Try running Synapse 2.0 again once the scan finishes(it will tell you if anything was corrupted and repaired). Open your startmenu and type cmd in the taskbar > Run cmd.exe as administrator > Type 'sfc /scannow' without the quotation marks and press ENTER > This prompts Windows to do a scan of your system files, while trying to repair any corrupted ones you have automatically. NET framework turned out to have corrupted files, which conflicted with Synapse 2.0 causing it to crash NET framework on your computer as Synapse 2.0 runs through it on windows OS. When i tried running it without admin rights it would display a 0x000035 application error, and basically said Synapse 2.0 was conflicted somehow with the microsoft. I had the same issue where synapse 2.0(with admin rights) would start for 1 second before crashing. I'm running Windows 8.1 64 bit, but i'm 99% positive this solution can be tried with windows 7(or any other windows OS past XP for that matter). I suffered from the same issue as the OP of this thread, i thought i'd share what i did to fix synapse 2.0 for my OS.

Razer synapse 2.0 installer download