unity_csc.bat missing on 2020.1.13f1 install, cannot create it

I can't build my project because of this problem and its been bothering me, if I try to create the file or copy/paste it from another Unity install it'll just outright refuse even though I'm an administrator. I've tried reinstalling Unity, still nothing

full error:

Exception: 'E:\UnityEngines\2020.1.13f1\Editor\Data\Tools\RoslynScripts\unity_csc.bat' not found. Is your Unity installation corrupted? UnityEditor.Scripting.Compilers.MicrosoftCSharpCompiler.ThrowCompilerNotFoundException (System.String path) (at :0) UnityEditor.Scripting.Compilers.MicrosoftCSharpCompiler.BeginCompiling () (at :0) UnityEditor.Scripting.ScriptCompilation.CompilationTask.QueuePendingAssemblies () (at :0) UnityEditor.Scripting.ScriptCompilation.CompilationTask.Poll () (at :0) UnityEditor.Scripting.ScriptCompilation.EditorCompilation.CompileScriptAssemblies (UnityEditor.Scripting.ScriptCompilation.ScriptAssembly[] scriptAssemblies, UnityEditor.Scripting.ScriptCompilation.ScriptAssemblySettings scriptAssemblySettings, System.String tempBuildDirectory, UnityEditor.Scripting.ScriptCompilation.EditorScriptCompilationOptions options, UnityEditor.Scripting.ScriptCompilation.CompilationTaskOptions compilationTaskOptions, UnityEditor.Scripting.ScriptCompilation.EditorCompilation+CompileScriptAssembliesOptions compileScriptAssembliesOptions) (at :0) UnityEditor.Scripting.ScriptCompilation.EditorCompilation.CompileScripts (UnityEditor.Scripting.ScriptCompilation.ScriptAssemblySettings scriptAssemblySettings, System.String tempBuildDirectory, UnityEditor.Scripting.ScriptCompilation.EditorScriptCompilationOptions options, UnityEditor.Scripting.ScriptCompilation.CompilationTaskOptions compilationTaskOptions, UnityEditor.Scripting.ScriptCompilation.EditorBuildRules+TargetAssembly[]& notCompiledTargetAssemblies, System.String[]& notCompiledScripts) (at :0) UnityEditor.Scripting.ScriptCompilation.EditorCompilation.CompileScripts (UnityEditor.Scripting.ScriptCompilation.EditorScriptCompilationOptions options, UnityEditor.BuildTargetGroup platformGroup, UnityEditor.BuildTarget platform, System.String[] extraScriptingDefines, UnityEditor.Scripting.ScriptCompilation.CompilationTaskOptions compilationTaskOptions) (at :0) UnityEditor.Scripting.ScriptCompilation.EditorCompilation.TickCompilationPipeline (UnityEditor.Scripting.ScriptCompilation.EditorScriptCompilationOptions options, UnityEditor.BuildTargetGroup platformGroup, UnityEditor.BuildTarget platform, System.String[] extraScriptingDefines) (at :0) UnityEditor.Scripting.ScriptCompilation.EditorCompilationInterface.TickCompilationPipeline (UnityEditor.Scripting.ScriptCompilation.EditorScriptCompilationOptions options, UnityEditor.BuildTargetGroup platformGroup, UnityEditor.BuildTarget platform, System.String[] extraScriptingDefines) (at