74,139,804 programs installed

Should I remove UMI ROOTJOY?

What percent of users and experts removed it?
5% remove it95% keep it
Overall Sentiment
Very good
What do people think about it?
Be the first to rate (click star to rate)
How common is it?
Reach 0.0004%


VersionDistribution 80.00% 20.00%



UMI ROOTJOY is a software program developed by UMI DIGI. The most common release is, with over 98% of all installations currently using this version. The primary executable is named youmiassistant.exe. The setup package generally installs about 29 files and is usually about 22.32 MB (23,407,886 bytes). Relative to the overall usage of users who have this installed on their PCs, most are running Windows 7 (SP1) and Windows 8. While about 57% of users of UMI ROOTJOY come from the United States, it is also popular in Germany and France.

Program detailsProgram details

URL: 91umi.com
Installation folder: C:\Program Files\ROOTJOY\
Uninstaller: "C:\Program Files\ROOTJOY\unins000.exe"
Estimated size: 22.32 MB

Program filesFiles installed by UMI ROOTJOY

Program executable:youmiassistant.exe
Path:C:\Program Files\rootjoy\youmiassistant.exe
Additional files:
  • FlashRomTool.exe (by UMI.Inc) - UMI PHONE Flashing process
  • ConnAPI.dll (by Nokia) - PC Connectivity Solution (Nokia Connectivity API)
  • DAAPI.dll (by Nokia) - Data Access API
  • ApkInstaller.exe (by UMI.Inc) - Application Install (Application Install (UMI PHONE))
  • PCCS_DBAPI.dll - Nokia Database API
  • BackupMaster.exe - UMI PHONE Back-up
  • DeviceProtecteru.dll - DeviceProtecter
  • Common.dll
  • DuiLib_u.dll
  • PhoneManagerU.dll - PhoneManager
  • AdbWinApi.dll (by Google, inc) - Android SDK (Android ADB API)
  • AdbWinUsbApi.dll (by Google, inc) - Android ADB API (WinUsb)
  • libusb-1.0.dll (by libusbx.org) - libusb-1.0 (C library for writing portable USB drivers in userspace)
  • AchieveBDPanUrl.dll
  • BugReport.exe - BugReport
  • libaapt.dll
  • ISTask.dll (by Genry) - ISTask (ISTask for Inno Setup)
  • romaster_daemon.exe
  • DriverInstallerX64.exe
  • DriverInstallerX86.exe
  • BackupModel.dll
  • NSPConnection.dll
  • RomasterConnection.exe
  • unins000.exe - Setup/Uninstall

How do I remove UMI ROOTJOY?

Quickly and completely remove UMI ROOTJOY from your computer by downloading "Should I Remove It?", its 100% FREE and installs in seconds (click the button below).
Or, you can uninstall UMI ROOTJOY from your computer by using the Add/Remove Program feature in the Window's Control Panel.
  1. On the Start menu (for Windows 8, right-click the screen's bottom-left corner), click Control Panel, and then, under Programs, do one of the following:
    • Windows Vista/7/8: Click Uninstall a Program.
    • Windows XP: Click Add or Remove Programs.
  2. When you find the program UMI ROOTJOY, click it, and then do one of the following:
    • Windows Vista/7/8: Click Uninstall.
    • Windows XP: Click the Remove or Change/Remove tab (to the right of the program).
  3. Follow the prompts. A progress bar shows you how long it will take to remove UMI ROOTJOY.

Win 7 (SP1) 60%
Win 8 40%
Uninstall it 5%
Keep it 95%
United States

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows 7 60.00%
Windows 8 40.00%
Which OS releases does it run on?
Windows 10 Home 40.00%
Windows 7 Home Premium 40.00%
Windows 7 Enterprise 20.00%

Distribution by countryGeography

57.14% of installs come from the United States
Which countries install it?
  United States 57.14%
  Germany 14.29%
  France 14.29%
  United Kingdom 14.29%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
Sony 20.00%
Lenovo 20.00%
Acer 20.00%
ASUS 20.00%
Common models
Sony VPCF136FM 20.00%
LENOVO 20351 20.00%
Gigabyte GA-970A-UD3 20.00%
ASUSTeK T100TA 20.00%
Acer Aspire 5742G 20.00%


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