How to Fix bdsosost.exe.upd Error? Is it safe?

Frustrated by the bdsosost.exe.upd error message? Well, you should want to know what this bdsosost.exe.upd file is, what causes this error and the most important thing is how to fix this error. In this page, you will find all answers to your questions about this bdsosost.exe.upd and the methods to fix it.

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What's bdsosost.exe.upd File?

As its file extension denotes, bdsosost.exe.upd is a vital upd file and it's a component of the software BitDefender developed by Windows Software Developer. The latest version of bdsosost.exe.upd file is 13, 0, 0, 13 and MD5 value is a698915108c5e529cce49e8db0b9b191. This error can be seen on Windows XP, Windows Vista, Windows 7, Windows 8 and Windows 10.

bdsosost.exe.upd file information:
File Name:   
   bdsosost.exe.upd (Free Scan)
File Description:   
Product Name:   
Product Version:   
   13, 0, 0, 13
   Windows Software Developer
File md5:   
File type:   
   upd file
Security Level(0-5):   
OS Infected:   
   Download bdsosost.exe.upd Error Free Scan Tool

Why Do I Receive bdsosost.exe.upd Error?

BitDefender and the Windows will generate bdsosost.exe.upd error when bdsosost.exe.upd file cannot be used due to the removal or corruption of bdsosost.exe.upd file. Virus infection is also a potential cause of bdsosost.exe.upd error.

Popular bdsosost.exe.upd Error Messages

  • The application has failed to start because bdsosost.exe.upd was not found. Re-installing the application may fix this problem.
  • The program can't start because bdsosost.exe.upd is missing from your computer. Try reinstalling the program to fix this problem.
  • bdsosost.exe.upd failed. The specified module could not be found.
  • File not found: bdsosost.exe.upd.
  • Failed to load library 'bdsosost.exe.upd'.
  • Access violation in module 'bdsosost.exe.upd'.
  • Component 'bdsosost.exe.upd' or one of its dependencies not correctly registered a file is missing or invalid.

You may receive bdsosost.exe.upd error when you run or close BitDefender, start or shut down the computer, or use specific function of BitDefender. The time you encounter the error is very important to troubleshoot the problem.

Causes of bdsosost.exe.upd Error

bdsosost.exe.upd error can be caused by plenty of reasons. The following are the most common causes of bdsosost.exe.upd error.

  • The latest version of bdsosost.exe.upd file is overwritten by a previous version installed by another newly-installed program.
  • There is a malfunctioning or faulty hardware in your computer.
  • bdsosost.exe.upd file is infected with malicious adware, Trojans, spyware and malware.
  • The associated entries of bdsosost.exe.upd are corrupted in the registry.
  • bdsosost.exe.upd file that is still used by other programs is uninstalled by another program.

How to Fix bdsosost.exe.upd Error?

If you're confident of fixing this problem yourself, we have listed several solutions to troubleshoot your bdsosost.exe.upd problem.

Method 1: Uninstall and then reinstall BitDefender causing bdsosost.exe.upd error.

If bdsosost.exe.upd error pops up when you're using BitDefender, then it's worth trying to reinstall BitDefender or the program from Windows Software Developer.


Windows Vista, Windows 7 and Windows 10:

a. Click Start and click Control Panel.

start control panel windows 7

b. Click Uninstall a program.

win7 control panel programs and features

c. Look for BitDefender or the program from Windows Software Developer, right click on it and click Uninstall to uninstall it from your system.

uninstall software

d. After the uninstallation, restart your computer and then reinstall the software with your disc or the installer from the official website.

Windows 8 and 8.1:

a. Hover the cursor to the top right corner of the screen to bring up Charms bar and then click Search.

windows 8 charms bar search

b. Click Settings, type uninstall, and click Uninstall a program in the search results.

uninstall windows8

c. Look for BitDefender or the program from Windows Software Developer, right click on it and click Uninstall to uninstall it from your system.

uninstall software windows8

d. After the uninstallation, restart your computer and then reinstall the software with your disc or the installer from the official website.

Method 2: Run a virus scan.

Malware infection is one of the most popular cause of various computer problems like bdsosost.exe.upd error. Computer malware can make their way into the system, change system settings and corrupt system files. When this happens, BitDefender and Windows becomes more prone to bdsosost.exe.upd error and even malfunction.


a. Restart your system into Safe Mode with Networking.

b. Open your antivirus or antispyware program. (You can also use this recommended malware detect tool)

c. Run a full scan for your system.

d. After the scan completes, either quarantine or remove any detected malware.

e. Restart your system.

Method 3: Restart your computer.

You can try restarting your computer to fix bdsosost.exe.upd error, as sometimes bdsosost.exe.upd error may be temporary and can be fixed after a system restart.

Method 4: Repair corrupted Windows registry.

As the most important part of Windows operating system, Windows registry is a place that stores all information and configurations of software and hardware. A problematic registry is one of the most common causes of computer errors like bdsosost.exe.upd error. Software installation, uninstallation, malware infection can make changes to the registry. Over time, more and more invalid entries are left and accumulated in the registry and then lead to various errors and problems. The registry needs regular maintenance to keep it tidy and stable. Manual editing the registry is not practical for people with no computer expertise, it's recommended that you use a registry cleaner to do this job.


Note: It requires certain computer knowledge to perform the above solutions. If you're not comfortable with this process, it's recommended that you download and run this automatic error fix utility to fix your PC problems automatically:

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Does bdsosost.exe.upd error still persist?

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