File Company:LSI Logic
File Product:Microsoft® Windows® Operating System
File Version:5.1.2462.0
File path(s):C:\WINDOWS\system32\drivers\sym_u3.sys
File size:29.9KB
File type:SYS
Description:Symbios Ultra3 SCSI Miniport Driver

What causes a Rundll Error?

A Rundll error occurs when XP, Windows 10 systems startup, and the Rundll error is caused by: Improperly deleting a DLL file. Missing DLL errors caused by deletion of a shared DLL file when an application is uninstalled. A shared DLL file is deleted or infected by a virus or Trojan. Invalid or incorrect DLL entries in the Windows registry. Corrupted DLL files.

How to Fix sym_u3.sys problems

What is sym_u3.sys?

sym_u3.sys is part of a product called known as Microsoft® Windows® Operating System and it is developed by LSI Logic. C:\WINDOWS\system32\drivers\sym_u3.sys

Do you have a problem with sym_u3.sys?

If sym_u3.sys is using too much CPU or too much memory in your system, it is possible that your file has been infected with a virus. Try installing DLLEscort to fix this error.

How to remove sym_u3.sys from your computer?

If you want to remove sym_u3.sys from your computer, just go to Start > Control Panel > Add/Remove programs and select Microsoft® Windows® Operating System from the list.

How can you fix problems with sym_u3.sys?

If you have any problems with sym_u3.sys, you may try using a dllescort to check, analyze, and fix DLL problems that are affecting the performance of your computer.

How can you find further information for sym_u3.sys?

Symbios Ultra3 SCSI Miniport Driver

Run System File Checker (SFC)

1.Press Windows Key + X then click on Command Prompt(Admin).

command prompt with admin rights

2.Now type the following in the cmd and hit enter:

Sfc /scannow
sfc /scannow /offbootdir=c:\ /offwindir=c:\windows

SFC scan now command prompt

3.Wait for the above process to finish and once done restart your PC.