What is bb-run?

The genuine bb-run.sys file is a software component of Promise Disk Accelerator by Promise Technology.
This Promise Technology file is a Windows Driver and many applications depend on it. If corrupted, it can lead to errors or slow PC performance. It is often related to storage functionality in 'Fat' and 'NTFS' systems and drives, but is also incorporated into many applications in order for them to run. Promise Technology provides high quality and high capacity storage solutions for surveillance applications, cloud storage, rich media markets, and data centers.

BB-Run stands for Bios Boot Disc Accelerator-Run

Bb-run.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 bb-run.sys is a Windows system file or if it belongs to an application that you can trust.

Run a free scan to check for bb-run drivers in need of updating

Bb-run.sys file information

The process known as Promise Disk Accelerator belongs to software Promise driver accelerator by Promise Technology (

Description: Bb-run.sys is not essential for the Windows OS and causes relatively few problems. Bb-run.sys is located in the C:\Windows\System32\drivers folder. The file size on Windows 10/8/7/XP is 17,408 bytes. 
The driver can be started or stopped from Services in the Control Panel or by other programs. The program is not visible. The file is a trustworthy file from Microsoft. The service has no detailed description. The file is not a Windows core file. bb-run.sys appears to be a compressed file. Therefore the technical security rating is 15% dangerous, however you should also read the user reviews.

Recommended: Identify bb-run.sys related errors

Important: Some malware disguises itself as bb-run.sys, particularly when not located in the C:\Windows\System32\drivers folder. Therefore, you should check the bb-run.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

Promise raid driver
  chris hayes  

Summary: Average user rating of bb-run.sys: based on 2 votes with 1 user comment. One user thinks bb-run.sys is essential for Windows or an installed application. One user thinks it's probably harmless.

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Best practices for resolving bb-run issues

A clean and tidy computer is the key requirement for avoiding problems with bb-run. 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 bb-run.sys 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.

Other processes

bb-run.sys [all]