diff --git a/project_files/lab01_12var/lab01_12var.sln b/project_files/lab01_12var/lab01_12var.sln
deleted file mode 100644
index 335ac94..0000000
--- a/project_files/lab01_12var/lab01_12var.sln
+++ /dev/null
@@ -1,37 +0,0 @@
-
-Microsoft Visual Studio Solution File, Format Version 12.00
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-VisualStudioVersion = 17.10.35027.167
-MinimumVisualStudioVersion = 10.0.40219.1
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "lab01_12var", "lab01_12var\lab01_12var.vcxproj", "{BC866592-2029-4ECB-B62A-2FCA352AAA22}"
-EndProject
-Global
-	GlobalSection(SolutionConfigurationPlatforms) = preSolution
-		Debug|ARM64 = Debug|ARM64
-		Debug|x64 = Debug|x64
-		Debug|x86 = Debug|x86
-		Release|ARM64 = Release|ARM64
-		Release|x64 = Release|x64
-		Release|x86 = Release|x86
-	EndGlobalSection
-	GlobalSection(ProjectConfigurationPlatforms) = postSolution
-		{BC866592-2029-4ECB-B62A-2FCA352AAA22}.Debug|ARM64.ActiveCfg = Debug|ARM64
-		{BC866592-2029-4ECB-B62A-2FCA352AAA22}.Debug|ARM64.Build.0 = Debug|ARM64
-		{BC866592-2029-4ECB-B62A-2FCA352AAA22}.Debug|x64.ActiveCfg = Debug|x64
-		{BC866592-2029-4ECB-B62A-2FCA352AAA22}.Debug|x64.Build.0 = Debug|x64
-		{BC866592-2029-4ECB-B62A-2FCA352AAA22}.Debug|x86.ActiveCfg = Debug|Win32
-		{BC866592-2029-4ECB-B62A-2FCA352AAA22}.Debug|x86.Build.0 = Debug|Win32
-		{BC866592-2029-4ECB-B62A-2FCA352AAA22}.Release|ARM64.ActiveCfg = Release|ARM64
-		{BC866592-2029-4ECB-B62A-2FCA352AAA22}.Release|ARM64.Build.0 = Release|ARM64
-		{BC866592-2029-4ECB-B62A-2FCA352AAA22}.Release|x64.ActiveCfg = Release|x64
-		{BC866592-2029-4ECB-B62A-2FCA352AAA22}.Release|x64.Build.0 = Release|x64
-		{BC866592-2029-4ECB-B62A-2FCA352AAA22}.Release|x86.ActiveCfg = Release|Win32
-		{BC866592-2029-4ECB-B62A-2FCA352AAA22}.Release|x86.Build.0 = Release|Win32
-	EndGlobalSection
-	GlobalSection(SolutionProperties) = preSolution
-		HideSolutionNode = FALSE
-	EndGlobalSection
-	GlobalSection(ExtensibilityGlobals) = postSolution
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-	EndGlobalSection
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