Battle.net

Sorry for my bad english i have to write here becouse noone can help me on polish forum.

Hi. Bought the game few weeks ago and all was fine until i forgot to copy SC2 from my pc to laptop and had to download it again.
I have Downloaded & installed the game and even played once, but every other try to launch the game i see updater loop
Already tried to download and install again, same story.

This is log from my setup loop

Help me please :)

2012/09/07 18:31:30.460 - Blizzard Setup v1032 at 'C:\Program Files (x86)\StarCraft II\StarCraft II.exe' for s2_plpl plPL reporting for duty!
2012/09/07 18:31:30.460 - Setup Complete!
2012/09/07 18:31:30.460 - Bootstrapper Stage: CHECK_PERMISSIONS
2012/09/07 18:31:30.460 - Fix permissions is not set. Continuing.
2012/09/07 18:31:30.460 - Bootstrapper Stage: CHECK_RUNNING_INSTANCE
2012/09/07 18:31:30.465 - Bootstrapper Stage: CHECK_ELEVATION
2012/09/07 18:31:30.465 - Bootstrapper Stage: UPDATE_BOOTSTRAPPER
2012/09/07 18:31:30.465 - Bootstrapper Stage: EXTRACT_AGENT
2012/09/07 18:31:30.466 - Agent needs to update. Extracting Agent.
2012/09/07 18:31:30.999 - Bootstrapper Stage: START_AGENT
2012/09/07 18:31:30.999 - Checking if Agent is running. If not, run Agent.
2012/09/07 18:31:31.004 - Launching agent: State START_AGENT
2012/09/07 18:31:32.826 - Agent is running.
2012/09/07 18:31:32.826 - Bootstrapper Stage: UPDATE_AGENT
2012/09/07 18:31:32.826 - Checking patch for Agent.
2012/09/07 18:31:32.835 - Downloading patch for agent update.
2012/09/07 18:31:34.890 - Updating agent.
2012/09/07 18:31:37.809 - Done updating agent.
2012/09/07 18:31:37.922 - Bootstrapper Stage: CHECK_CLIENT
2012/09/07 18:31:37.922 - Checking if client is already registered with agent.
2012/09/07 18:31:37.951 - Bootstrapper Stage: EXTRACT_CLIENT
2012/09/07 18:31:37.952 - Client needs to update. Extracting Client.
2012/09/07 18:31:41.057 - Bootstrapper Stage: INSTALL_CLIENT
2012/09/07 18:31:41.057 - Registering client at 'C:\ProgramData\Battle.net\Client' to agent.
2012/09/07 18:31:41.078 - Bootstrapper Stage: UPDATE_CLIENT
2012/09/07 18:31:41.078 - Checking patch for Client.
2012/09/07 18:31:41.361 - Downloading patch for client update.
2012/09/07 18:31:45.572 - Updating client.
2012/09/07 18:31:46.345 - Blizzard Launcher is up-to-date.
2012/09/07 18:31:46.345 - Bootstrapper Stage: LAUNCH_CLIENT
2012/09/07 18:31:46.345 - Agent launching Client to launch s2_plpl.
2012/09/07 18:31:46.370 - Failed to launch Blizzard Launcher executable.
2012/09/07 18:31:46.378 - Bootstrapper Stage: EXTRACT_CLIENT
2012/09/07 18:31:46.379 - Verifying Client.
2012/09/07 18:31:46.380 - Extracting Agent.
2012/09/07 18:31:49.489 - Extracting Agent.
2012/09/07 18:31:52.461 - Extracting Agent.
2012/09/07 18:31:55.342 - Extracting Agent.
2012/09/07 18:31:58.219 - Could not verify an extracted version of Client.
2012/09/07 18:31:58.219 - Bootstrapper Stage: INSTALL_CLIENT
2012/09/07 18:31:58.219 - Registering client at 'C:\ProgramData\Battle.net\Client' to agent.
2012/09/07 18:31:58.237 - Bootstrapper Stage: UPDATE_CLIENT
2012/09/07 18:31:58.237 - Checking patch for Client.
2012/09/07 18:31:58.511 - Blizzard Launcher is up-to-date.
2012/09/07 18:31:58.511 - Bootstrapper Stage: LAUNCH_CLIENT
2012/09/07 18:31:58.511 - Agent launching Client to launch s2_plpl.
2012/09/07 18:31:58.526 - Failed to launch Blizzard Launcher executable.
2012/09/07 18:31:58.543 - Bootstrapper Stage: EXTRACT_CLIENT
2012/09/07 18:31:58.544 - Verifying Client.
2012/09/07 18:31:58.545 - Extracting Agent.
2012/09/07 18:32:01.453 - Extracting Agent.
2012/09/07 18:32:04.353 - Extracting Agent.
2012/09/07 18:32:07.241 - Extracting Agent.
2012/09/07 18:32:10.259 - Could not verify an extracted version of Client.
2012/09/07 18:32:10.259 - Bootstrapper Stage: INSTALL_CLIENT
2012/09/07 18:32:10.259 - Registering client at 'C:\ProgramData\Battle.net\Client' to agent.
2012/09/07 18:32:10.267 - Bootstrapper Stage: UPDATE_CLIENT
2012/09/07 18:32:10.267 - Checking patch for Client.
2012/09/07 18:32:10.437 - Blizzard Launcher is up-to-date.
2012/09/07 18:32:10.437 - Bootstrapper Stage: LAUNCH_CLIENT
2012/09/07 18:32:10.437 - Agent launching Client to launch s2_plpl.
2012/09/07 18:32:10.464 - Failed to launch Blizzard Launcher executable.
2012/09/07 18:32:10.483 - Bootstrapper Stage: EXTRACT_CLIENT
2012/09/07 18:32:10.483 - Verifying Client.
2012/09/07 18:32:10.484 - Extracting Agent.
2012/09/07 18:32:13.505 - Extracting Agent.
2012/09/07 18:32:16.378 - Extracting Agent.
2012/09/07 18:32:19.430 - Extracting Agent.
2012/09/07 18:32:22.422 - Could not verify an extracted version of Client.
2012/09/07 18:32:22.422 - Bootstrapper Stage: INSTALL_CLIENT
2012/09/07 18:32:22.422 - Registering client at 'C:\ProgramData\Battle.net\Client' to agent.
2012/09/07 18:32:22.439 - Bootstrapper Stage: UPDATE_CLIENT
2012/09/07 18:32:22.439 - Checking patch for Client.
2012/09/07 18:32:22.595 - Blizzard Launcher is up-to-date.
2012/09/07 18:32:22.595 - Bootstrapper Stage: LAUNCH_CLIENT
2012/09/07 18:32:22.595 - Agent launching Client to launch s2_plpl.
2012/09/07 18:32:22.623 - Failed to launch Blizzard Launcher executable.
2012/09/07 18:32:22.631 - Bootstrapper Stage: EXTRACT_CLIENT
2012/09/07 18:32:22.631 - Verifying Client.
2012/09/07 18:32:22.632 - Extracting Agent.
2012/09/07 18:32:25.597 - Extracting Agent.
2012/09/07 18:32:28.521 - Extracting Agent.
2012/09/07 18:32:31.437 - Extracting Agent.
2012/09/07 18:32:34.400 - Could not verify an extracted version of Client.
2012/09/07 18:32:34.400 - Bootstrapper Stage: INSTALL_CLIENT
2012/09/07 18:32:34.400 - Registering client at 'C:\ProgramData\Battle.net\Client' to agent.
2012/09/07 18:32:34.416 - Bootstrapper Stage: UPDATE_CLIENT
2012/09/07 18:32:34.416 - Checking patch for Client.
2012/09/07 18:32:34.914 - Blizzard Launcher is up-to-date.
2012/09/07 18:32:34.914 - Bootstrapper Stage: LAUNCH_CLIENT
2012/09/07 18:32:34.914 - Agent launching Client to launch s2_plpl.
2012/09/07 18:32:34.935 - Failed to launch Blizzard Launcher executable.
2012/09/07 18:32:34.945 - Bootstrapper Stage: EXTRACT_CLIENT
2012/09/07 18:32:34.947 - Verifying Client.
2012/09/07 18:32:34.948 - Extracting Agent.
2012/09/07 18:32:37.930 - Extracting Agent.
2012/09/07 18:32:40.823 - Extracting Agent.
2012/09/07 18:32:43.897 - Extracting Agent.
2012/09/07 18:32:46.914 - Could not verify an extracted version of Client.
2012/09/07 18:32:46.914 - Bootstrapper Stage: INSTALL_CLIENT
2012/09/07 18:32:46.914 - Registering client at 'C:\ProgramData\Battle.net\Client' to agent.
2012/09/07 18:32:46.931 - Bootstrapper Stage: UPDATE_CLIENT
2012/09/07 18:32:46.931 - Checking patch for Client.
2012/09/07 18:32:47.084 - Blizzard Launcher is up-to-date.
2012/09/07 18:32:47.084 - Bootstrapper Stage: LAUNCH_CLIENT
2012/09/07 18:32:47.084 - Agent launching Client to launch s2_plpl.
2012/09/07 18:32:47.103 - Failed to launch Blizzard Launcher executable.
2012/09/07 18:32:47.121 - Bootstrapper Stage: EXTRACT_CLIENT
2012/09/07 18:32:47.122 - Verifying Client.
2012/09/07 18:32:47.123 - Extracting Agent.
2012/09/07 18:32:49.955 - Extracting Agent.
2012/09/07 18:32:52.796 - Extracting Agent.
2012/09/07 18:32:55.658 - Extracting Agent.
2012/09/07 18:32:58.571 - Could not verify an extracted version of Client.
2012/09/07 18:32:58.571 - Bootstrapper Stage: INSTALL_CLIENT
2012/09/07 18:32:58.571 - Registering client at 'C:\ProgramData\Battle.net\Client' to agent.
2012/09/07 18:32:58.587 - Bootstrapper Stage: UPDATE_CLIENT
2012/09/07 18:32:58.587 - Checking patch for Client.
2012/09/07 18:32:58.732 - Blizzard Launcher is up-to-date.
2012/09/07 18:32:58.732 - Bootstrapper Stage: LAUNCH_CLIENT
2012/09/07 18:32:58.732 - Agent launching Client to launch s2_plpl.
2012/09/07 18:32:58.755 - Failed to launch Blizzard Launcher executable.
2012/09/07 18:32:58.788 - Bootstrapper Stage: EXTRACT_CLIENT
2012/09/07 18:32:58.789 - Verifying Client.
2012/09/07 18:32:58.790 - Extracting Agent.
2012/09/07 18:33:01.720 - Extracting Agent.
2012/09/07 18:33:04.682 - Extracting Agent.
2012/09/07 18:33:07.685 - Extracting Agent.
2012/09/07 18:33:10.668 - Could not verify an extracted version of Client.
2012/09/07 18:33:10.668 - Bootstrapper Stage: INSTALL_CLIENT
2012/09/07 18:33:10.668 - Registering client at 'C:\ProgramData\Battle.net\Client' to agent.
2012/09/07 18:33:10.684 - Bootstrapper Stage: UPDATE_CLIENT
2012/09/07 18:33:10.684 - Checking patch for Client.
2012/09/07 18:33:10.834 - Blizzard Launcher is up-to-date.
2012/09/07 18:33:10.834 - Bootstrapper Stage: LAUNCH_CLIENT
2012/09/07 18:33:10.834 - Agent launching Client to launch s2_plpl.
2012/09/07 18:33:10.858 - Failed to launch Blizzard Launcher executable.
2012/09/07 18:33:10.879 - Bootstrapper Stage: EXTRACT_CLIENT
2012/09/07 18:33:10.880 - Verifying Client.
2012/09/07 18:33:10.881 - Extracting Agent.
2012/09/07 18:33:13.870 - Extracting Agent.
2012/09/07 18:33:16.770 - Extracting Agent.
2012/09/07 18:33:19.720 - Extracting Agent.
2012/09/07 18:33:22.697 - Could not verify an extracted version of Client.
2012/09/07 18:33:22.697 - Bootstrapper Stage: INSTALL_CLIENT
2012/09/07 18:33:22.697 - Registering client at 'C:\ProgramData\Battle.net\Client' to agent.
2012/09/07 18:33:22.706 - Bootstrapper Stage: UPDATE_CLIENT
2012/09/07 18:33:22.706 - Checking patch for Client.
2012/09/07 18:33:22.860 - Blizzard Launcher is up-to-date.
2012/09/07 18:33:22.860 - Bootstrapper Stage: LAUNCH_CLIENT
2012/09/07 18:33:22.860 - Agent launching Client to launch s2_plpl.
2012/09/07 18:33:22.889 - Failed to launch Blizzard Launcher executable.
2012/09/07 18:33:22.915 - Bootstrapper Stage: EXTRACT_CLIENT
2012/09/07 18:33:22.915 - Verifying Client.
2012/09/07 18:33:22.916 - Extracting Agent.
2012/09/07 18:33:25.893 - Extracting Agent.
2012/09/07 18:33:28.927 - Extracting Agent.

Can you remove Battle.net folder from
C:\ProgramData (this folder is hidden by default)
then try and launch StarCraft II again and see if this changes anything. It should re-download Agent again which could be one causing issue here.

it is redownloading same agent
but windows XP compatibility solves the problem (found on diablo 3 forum)

Good to hear, and thanks for sharing how you fixed it.