84,488,480 programs installed

Should I remove USB ACF Modem?

What percent of users and experts removed it?
7% remove it93% keep it
Overall Sentiment
What do people think about it?
(click star to rate)
How common is it?
Global Rank #10,879
United States Rank #7,948
Reach 0.0318%
Lifespan of installation (until removal)
< 99.74 days
457.79 days >
Average installed length: 240.53 days


VersionDistribution 0.48% 79.27% 15.63% 4.63%

Other programs by Conexant Systems, Inc


What is USB ACF Modem?

This is the software driver package for the installed USB ACF Modem. The driver package is required in order for the Conexant device to function properly and is the software that allows your computer to communicate with this hardware device.


The most used version is, with over 98% of all installations currently using this version. The main program executable is uiu64c.exe. The software installer includes 18 files and is usually about 1.36 MB (1,427,000 bytes).

Program detailsProgram details

URL: www.conexant.com/support
Installation folder: C:\Program Files\conexant\cnxt_modem_usb_acf
Uninstaller: C:\Program Files\CONEXANT\CNXT_MODEM_USB_ACF\UIU64c.exe -U -IPACFUSBw.INF
Estimated size: 1.36 MB

Program filesFiles installed by USB ACF Modem

Program executable:uiu64c.exe
Name:Conexant Universal Device Install/Uninstall x64 Application
Path:C:\Program Files\conexant\cnxt_modem_usb_acf\uiu64c.exe
Additional files:
  • UIU32c.exe - Conexant Universal Device Install/Uninstall x86 Application
  • UIUWA.exe
  • difxapi.dll (by Microsoft) - Driver Install Frameworks API (DIFxAPI) (Driver Install Frameworks for API library module)

How do I remove USB ACF Modem?

You can uninstall USB ACF Modem 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/7/8/10: Click Uninstall a Program.
    • Windows XP: Click Add or Remove Programs.
  2. When you find the program USB ACF Modem, click it, and then do one of the following:
    • Windows Vista/7/8/10: 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 USB ACF Modem.

Win 7 (SP1) 63%
Win Vista 0%
Uninstall it 7%
Keep it 93%

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows 7 65.23%
Windows 10 20.57%
Windows XP 7.66%
Windows Vista 6.54%
Which OS releases does it run on?
Windows 7 Home Premium 36.98%
Windows 7 Professional 15.11%
Windows 7 Ultimate 12.38%
Microsoft Windows XP 7.40%
Windows 8.1 5.47%
Windows Vista Home Premiu... 4.82%

Distribution by countryGeography

62.53% of installs come from the United States
Which countries install it?
  United States 62.53%
  Germany 6.32%
  Italy 4.30%
  United Kingdom 4.18%
  Canada 3.82%
  Iran 3.10%
  Israel 2.63%
  Australia 1.67%
  Brazil 1.07%
  Malaysia 1.07%
  SY 0.95%
  France 0.72%
  Spain 0.72%
  Saudi Arabia 0.60%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
Dell 27.81%
Hewlett-Packard 26.53%
Acer 13.52%
ASUS 8.67%
Toshiba 6.38%
Intel 3.57%
Lenovo 2.30%
Samsung 2.30%
Medion 1.28%
American Megatrends 1.02%
Common models
Dell Inspiron 1545 2.99%
ASUS All Series 2.49%
Dell Inspiron 620 2.49%
HP Pavilion dv6 Notebook ... 2.49%
HP Pavilion g6 Notebook P... 2.49%
Dell Inspiron N5010 1.99%

About Conexant Systems, Inc

Conexant is a semiconductor manufacturer and as many of semiconductor companies develops solutions for imaging, audio, embedded modem, and video surveillance applications.
Publisher URL: www.conexant.com


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