The File Extensions Database

.REGTRANS-MS File Extension

  • Developer by: Microsoft
  • Category: System Files
  • Format: Binary

What is an .REGTRANS-MS file?

.REGTRANS-MS is Registry Transaction Log File

File created with the Microsoft Common Log File System (CLFS), a Windows component used to create transaction logs; contains transaction read and write information about changes to the user or system registry restore data, which is stored in the NTUSER.DAT or SCHEMA.DAT files; used with a .BLF file to comprise the transaction log.

REGTRANS-MS files are commonly found in these two directories:

  • C:\Users\[user]\ - Contains user registry data
  • C:\Windows\System32\SMI\Store\Machine\ - Contains system registry restore data
Programs that open Registry Transaction Log File
Microsoft Common Log File System

How to solve problems with REGTRANS-MS files

  • Associate the REGTRANS-MS file extension with the correct application. On :
    Windows: Right click on any REGTRANS-MS file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.REGTRANS-MS files". Mac: Right click (or Ctrl-click) the REGTRANS-MS file, then click "Open with" > "Other...". Then choose another program and check the "Always Open With" box. Linux: Right click on the file, and select "Open with" and choose another program. iPhone: Tap the file. If you do not see an app to open the file, then tap Share "Share" and choose an app. Alternatively, save the file. Then open the Files app Files app. There long-press on the file, then release your finger. You will see a black menu bar. Then tap "Share" and select an app. Android: Tap the Settings icon on your smartphone, then tap on the Apps section. There tap the Options icon in the top right-hand corner of the screen to change the default apps.
  • Update your software that should actually open .REGTRANS-MS is Registry Transaction Log File. Because only the current version supports the latest REGTRANS-MS file format. Search, therefore, e.g. on the Microsoft manufacturer website after an available .REGTRANS-MS is Registry Transaction Log File update.
  • To make sure that your REGTRANS-MS file is not corrupted or virus-infected, get the file again and scan it with antivirus software.