Проект нормально загружался и работал. После перезагрузки конструктор вместо формы показывает ошибку:

Ошибка в данных (CRC).

Экземпляры ошибки (1)
1. Скрыть стек вызовов

в System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
в System.IO.FileStream.ReadCore(Byte[] buffer, Int32 offset, Int32 count)
в System.IO.FileStream.Read(Byte[] array, Int32 offset, Int32 count)
в Microsoft.VisualStudio.Design.VSDynamicTypeService.CopyFile(String inputFile, String outputFile)
в Microsoft.VisualStudio.Design.VSDynamicTypeService.ShadowCopyAssembly(String fileName)
в Microsoft.VisualStudio.Design.VSDynamicTypeService.CreateDynamicAssembly(String codeBase)
в Microsoft.VisualStudio.Design.VSTypeResolutionService.AssemblyEntry.get_Assembly()
в Microsoft.VisualStudio.Design.VSTypeResolutionService.AssemblyEntry.Search(String fullName, String typeName, Boolean ignoreTypeCase, Boolean allowPrivate, Assembly& assembly, String description)
в Microsoft.VisualStudio.Design.VSTypeResolutionService.AssemblyEntry.Search(String fullName, String typeName, Boolean ignoreTypeCase, Assembly& assembly, String description)
в Microsoft.VisualStudio.Design.VSTypeResolutionService.SearchProjectEntries(AssemblyName assemblyName, String typeName, Boolean ignoreTypeCase, Assembly& assembly)
в Microsoft.VisualStudio.Design.VSTypeResolutionService.SearchEntries(AssemblyName assemblyName, String typeName, Boolean ignoreCase, Assembly& assembly, ReferenceType refType)
в Microsoft.VisualStudio.Design.VSTypeResolutionService.GetType(String typeName, Boolean throwOnError, Boolean ignoreCase, ReferenceType refType)
в Microsoft.VisualStudio.Design.Serialization.CodeDom.AggregateTypeResolutionService.GetType(String name, Boolean throwOnError, Boolean ignoreCase)
в Microsoft.VisualStudio.Design.Serialization.CodeDom.AggregateTypeResolutionService.GetType(String name)
в System.ComponentModel.Design.Serialization.DesignerSerializationManager.GetRuntimeType(String typeName)
в System.ComponentModel.Design.Serialization.DesignerSerializationManager.GetType(String typeName)
в System.ComponentModel.Design.Serialization.DesignerSerializationManager.System.ComponentModel.Design.Serialization.IDesignerSerializationManager.GetType(String typeName)
в System.ComponentModel.Design.Serialization.CodeDomSerializerBase.GetType(IDesignerSerializationManager manager, String name, Dictionary`2 names)
в System.ComponentModel.Design.Serialization.CodeDomSerializerBase.FillStatementTable(IDesignerSerializationManager manager, IDictionary table, Dictionary`2 names, CodeStatementCollection statements, String className)
в System.ComponentModel.Design.Serialization.TypeCodeDomSerializer.Deserialize(IDesignerSerializationManager manager, CodeTypeDeclaration declaration)
в System.ComponentModel.Design.Serialization.CodeDomDesignerLoader.PerformLoad(IDesignerSerializationManager manager)
в Microsoft.VisualStudio.Design.Serialization.CodeDom.VSCodeDomDesignerLoader.PerformLoad(IDesignerSerializationManager serializationManager)
в Microsoft.VisualStudio.Design.Serialization.CodeDom.VSCodeDomDesignerLoader.DeferredLoadHandler.Microsoft.VisualStudio.TextManager.Interop.IVsTextBufferDataEvents.OnLoadCompleted(Int32 fReload)

Погуглил, ничего.

Проблема была в HDD. Сделал чекдиск и все заработало