MasterFile Support is here to help.
To contact us via email, please email support at_sign masterfile.biz
Note that e-mail is the fastest way to reach support. Please attach screenshots of any error messages you see and describe as closely as possible what you were doing. (ALT + PrtScr keys let you take a screen shot of the active window, dialog box or message prompt instead of the full screen — or use Windows 10 Snip tool.)
Or call us at
Mon. – Fri., 9 am to 5 pm Pacific Time