BK1 Types

Chief BK1 Description

.BK1

File ID:	.bk1
Category:	Autodesk Backup File

Autodesk products such as Mechanical Desktop, AutoCAD Map and AutoCAD Mechanical create this type of BK1 backup file. It acts as a storage for modified .BAK files. It's renamed after the Autodesk software shuts down unexpectedly.

Company:	Autodesk, Inc.
Class:	Backup Files
Folder:	HKEY_CLASSES_ROOT\.bk1

Software Programs That Open The Autodesk Backup File:

Autodesk AutoCAD Ecscad by Autodesk, Inc.

Windows

AutoCAD Mechanical by Autodesk, Inc.

Windows

Alternative BK1 Types

.BK1

File ID:	.bk1
Category:	Windows Indexing Service File

This type of files is generated by Indexing Service, an element of Microsoft Windows that is used to automate the index file system. It consists of info that makes file search faster in Windows.

Company:	Microsoft Corporation
Class:	System Files

Software Programs That Open Windows Indexing Service File Files:

Microsoft Windows by Microsoft Corporation

Compatible with:

Windows

.BK1

File ID:	.bk1
Category:	ERwin Backup File

BK1 is a backup file generated by erwin Data Modeler (erwin), a software for data modeling. The file comprises .ER1 diagram backup file and is automatically generated by the software when a user opens the .ER1 file. It's used in the recovery of data model files in case the native one is corrupted.

Company:	CA Technologies
Class:	Backup Files

Software Programs That Open ERwin Backup File Files:

erwin Data Modeler by CA Technologies

Compatible with:

Windows

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Sources of BK1 Problems

Typical BK1 Opening Challenges

Autodesk AutoCAD Ecscad is Not Installed

When trying to open your BK1 file, you get the error "Can't Open BK1 File Type". When this happens, it is commonly due to Autodesk AutoCAD Ecscad missing in %%os%%. The OS won't know what to do with your BK1 file, so double-clicking to load the file doesn't work.

Tip: If you have another software that you know opens BK1 files, you can select it by hitting the "Show Apps" button.

Wrong Version of Autodesk AutoCAD Ecscad is Installed

In other instances, your Autodesk Backup File file version may not be supported by your version of Autodesk AutoCAD Ecscad. If you've got the wrong version of Autodesk AutoCAD Ecscad installed, you'll need to install the correct version. The primary cause of this problem is that your Autodesk Backup File file was created by a different (newer) version of Autodesk AutoCAD Ecscad than what's installed.

Tip: Investigate your BK1 file by right-clicking and selecting "Properties" to find clues on what version you need.

Summary: In either case, the majority of problems opening BK1 files are related to not having the correct software application installed on your computer.

Associated Difficulties Loading BK1 Files

In the majority of cases, installing the right version of Autodesk AutoCAD Ecscad will resolve your issue. Other BK1 opening errors can be created by other system problems inside of %%os%%. Additional factors include:

• Invalid BK1 file references in the Windows Registry (the "phonebook" of the Windows Operating System)
• Accidental deletion of the description of the BK1 file in the Windows registry
• Partial installation of Autodesk AutoCAD Ecscad that did not fully complete
• Your BK1 can't be loaded properly (file corruption)
• Malware-tainted BK1 file can't be opened
• Hardware related to BK1s has device driver corruption
• Your PC doesn’t have enough available resources to open the Autodesk Backup File file