Synapse failed to start....

Discussion in 'Razer Support' started by Superthrust, Jun 7, 2019.

  1. Superthrust

    Superthrust New Member

    Cortex, synapse, all of it. Failed to start. Tried repairing, nothing worked.

    How about we solve this outside of a PM in case people have this issue in the future...?

    Last thing I knew, I was updating and when I restarted my pc due to a synapse and cortex update, it does not open since.
  2. Razer.Lauriat

    Razer.Lauriat Title: Entitled Staff Member

    Those whom I talked to in PM somehow had this issue fixed by performing a clean reinstallation of Synapse. You can try this by following the steps below:

    1. Uninstall Razer Synapse from your PC and delete all files in C:\Program Files (x86)\Razer and C:\ProgramData\Razer directories. These folders may be hidden by default, so please be sure to unhide them. We want to ensure that there are no residual files remaining that may corrupt your installation. This is important so please do so. Restart your computer afterward.
    2. Go into device manager, go to Keyboards/Audio inputs and outputs/Mouse and other pointing devices, uninstall HID Keyboard/Mouse Drivers and all other Razer product drivers, and restart your PC. Be sure to select delete drivers as well when uninstalling. Restart your computer again.
    3. Turn off all Firewall and Anti-virus software to prevent any conflicts. Download and install the latest version of Microsoft .NET Framework (4.5 or higher) at (In some cases, you may need to uninstall the older version on your system). Restart your computer again.
    4. Install the latest version of Razer Synapse that can be downloaded from

    If this doesn't work, just let me know.
  3. MKLO94

    MKLO94 New Member

    I have the same problem too,and doesn't work for me
  4. monnnytes

    monnnytes New Member

    it didnt work
  5. Razer.Lauriat

    Razer.Lauriat Title: Entitled Staff Member

    How about your OS? Are they fully updated?
  6. MarkingX2

    MarkingX2 New Member

    I've gone through the steps multiple times still no fix.
  7. testpilot932

    testpilot932 New Member

    Very unimpressed with your software and implementation. Get your $%#@ together. At this point I am done with Razer products and intend to share my experiences.
  8. leetcoastStizza378

    leetcoastStizza378 New Member

    I just bought a Razer Blackwidow 2019 and DeathAdder Elite. I tried to install Synapse 3.4.0711.xxxxxxx, and it "failed to start".

    I've gone through the above recommended steps and still "failed to start".

    Please help !
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