What is uiusys?

Uiusys.sys is a Windows driver. A driver is a small software program that allows your computer to communicate with hardware or connected devices. This means that a driver has direct access to the internals of the operating system, hardware etc. The free file information forum can help you determine if uiusys.sys is a Windows system file or if it belongs to an application that you can trust.

Run a free scan to check for uiusys drivers in need of updating

Uiusys.sys file information

The process known as Conexant Setup API belongs to software Conexant Setup API by unknown.

Description: Uiusys.sys is not essential for the Windows OS and causes relatively few problems. Uiusys.sys is located in an undetermined folder. The file size on Windows 10/8/7/XP is 0 bytes. 
The driver can be started or stopped from Services in the Control Panel or by other programs. The program has no file description. The program has no visible window. Note: File does not exist any longer. The process is not active. There is no detailed description of this service. Uiusys.sys is not a Windows system file. Therefore the technical security rating is 12% dangerous, however you should also read the user reviews.

Recommended: Identify uiusys.sys related errors

Important: Some malware camouflages itself as uiusys.sys. Therefore, you should check the uiusys.sys process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

Re: Vista SP1 hidden C:\SwSetup\Drivers\Modem\flat\Conexant\Vista32 (size on disk 8,192 bytes) UIU HW Access x86 Driver, System File, v4.0.0.3, ©Conexant Systems, Inc 2005,modified 4/16.2007 7:00 AM, MD5 7020C64A20709B39CBE4A1CF371A9CD5, also an x64 similiar/composite file.

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Best practices for resolving uiusys issues

A clean and tidy computer is the key requirement for avoiding problems with uiusys. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the uiusys.sys process on your computer, the following programs have proven to be helpful: Security Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

uiusys.sys [all]