.CHG File Extension
File Type 1Quicken Online Data File
What is a CHG file?
Older file type used to store Quicken financial information.
File Type 2Windows Net Logon File
.CHG File Association 2
Change log file created by the Windows service Net Logon (or Netlogon); tracks changes to the login security databases and is not meant to be opened or edited directly.
The file Netlogon.chg in the C:\Windows\ directory has been known to cause problems when creating Symantec Intelligent Disaster Recovery (IDR) bootable images. Consult the Symantec knowledge base to resolve the issue.