The genuine qemu-system-i386.exe file is a software component of QEMU by OSUOSL (Oregon State U. Open-Source Lab).
If free QEMU emulation software is installed, this executable module is used from the Windows command prompt specifically to launch system-mode emulations of PC-type CPU hardware, either by name for selected machines or with an ".IMG" filename operand that is a raw hard-disk image for IDE hard disk 0. In system emulation mode QEMU acts as if the PC has a specific list of peripherals that can be found in QEMU's WikiBooks documentation, as can the many powerful command line options. Emulation of non-PC CPU hardware is included in QEMU but requires a different executable launcher, and user-mode emulation to run specific software products is also offered. QEMU was invented and trademarked by the programmer Fabrice Bellard but the project is hosted by an academic lab (OSUOSL) and has a six-member Leadership Committee that interacts with Software Freedom Conservancy. This program can be uninstalled through the Control Panel (Add/Remove Programs or "Uninstall a program").
qemu-system-i386 stands for Quick Emulator PC System (i386) Mode emulator module
The .exe extension on a filename indicates an executable file. Executable files may, in some cases, harm your computer. Therefore, please read below to decide for yourself whether the qemu-system-i386.exe on your computer is a Trojan that you should remove, or whether it is a file belonging to the Windows operating system or to a trusted application.
Description: Qemu-system-i386.exe is not essential for Windows and will often cause problems. Qemu-system-i386.exe is located in a subfolder of "C:\Program Files" or sometimes in a subfolder of Windows folder for temporary files.
Known file sizes on Windows 10/8/7/XP are 3,338,240 bytes (80% of all occurrences) or 11,019,776 bytes.
There is no description of the program. The qemu-system-i386.exe file is not a Windows core file. The program is not visible. Therefore the technical security rating is 39% dangerous, however you should also read the user reviews.
Recommended: Identify qemu-system-i386.exe related errors
Important: Some malware camouflages itself as qemu-system-i386.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the qemu-system-i386.exe 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.
A clean and tidy computer is the key requirement for avoiding problems with qemu-system-i386. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic 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 6resmon 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 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.
To help you analyze the qemu-system-i386.exe process on your computer, the following programs have proven to be helpful: ASecurity 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. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.