Loaf Man

Im playing the 1.7.10 pack and the it crashed and returned me to the technic launcher. The I click play it loads for like 3 seconds and just stops. The only way I can paly again is to restart my pc. [B#822] java.io.FileNotFoundException: D:\technic\modpacks\the-1710-pack\bin\natives\avutil-ttv-51.dll (The process cannot access the file because it is being used by another process) [B#822] at java.io.FileOutputStream.open0(Native Method) [B#822] at java.io.FileOutputStream.open(Unknown Source) [B#822] at java.io.FileOutputStream.<init>(Unknown Source) [B#822] at java.io.FileOutputStream.<init>(Unknown Source) [B#822] at net.technicpack.utilslib.ZipUtils.unzipEntry(ZipUtils.java:76) [B#822] at net.technicpack.utilslib.ZipUtils.unzipFile(ZipUtils.java:136) [B#822] at net.technicpack.launchercore.install.tasks.UnzipFileTask.runTask(UnzipFileTask.java:59) [B#822] at net.technicpack.launchercore.install.tasks.TaskGroup.runTask(TaskGroup.java:85) [B#822] at net.technicpack.launchercore.install.InstallTasksQueue.runAllTasks(InstallTasksQueue.java:49) [B#822] at net.technicpack.launchercore.install.ModpackInstaller.installPack(ModpackInstaller.java:42) [B#822] at net.technicpack.launcher.launch.Installer$1.run(Installer.java:124) [B#822] at java.lang.Thread.run(Unknown Source) This is what comes up in red in the technic launcher console. Any advice??

Im playing the 1.7.10 pack and the it crashed and returned me to the technic launcher. The I click play it loads for like 3 seconds and just stops. The only way I can paly again is to restart my pc. [B#822] java.io.FileNotFoundException: D:\technic\modpacks\the-1710-pack\bin\natives\avutil-ttv-51.dll (The process cannot access the file because it is being used by another process) [B#822] at java.io.FileOutputStream.open0(Native Method) [B#822] at java.io.FileOutputStream.open(Unknown Source) [B#822] at java.io.FileOutputStream.<init>(Unknown Source) [B#822] at java.io.FileOutputStream.<init>(Unknown Source) [B#822] at net.technicpack.utilslib.ZipUtils.unzipEntry(ZipUtils.java:76) [B#822] at net.technicpack.utilslib.ZipUtils.unzipFile(ZipUtils.java:136) [B#822] at net.technicpack.launchercore.install.tasks.UnzipFileTask.runTask(UnzipFileTask.java:59) [B#822] at net.technicpack.launchercore.install.tasks.TaskGroup.runTask(TaskGroup.java:85) [B#822] at net.technicpack.launchercore.install.InstallTasksQueue.runAllTasks(InstallTasksQueue.java:49) [B#822] at net.technicpack.launchercore.install.ModpackInstaller.installPack(ModpackInstaller.java:42) [B#822] at net.technicpack.launcher.launch.Installer$1.run(Installer.java:124) [B#822] at java.lang.Thread.run(Unknown Source) This is what comes up in red in the technic launcher console. Any advice??