You can clean specific files or all the infected files that the tool finds. Be aware that some data loss is possible during this process. Also, be aware that the tool may be unable to restore some files to the original, pre-infection state. The removal tool may request that you restart your computer to complete the removal of some malicious software, or it may prompt you to perform manual steps to complete the removal of the malicious software.
To complete the removal, you should use an up-to-date antivirus product. The Malicious Software Removal Tool will send basic information to Microsoft if the tool detects malicious software or finds an error. This information will be used for tracking virus prevalence. No identifiable personal information that is related to you or to the computer is sent together with this report.
Do step step 4 quick , step 5 full , or step 6 custom below for what type of scan you want to run. The Microsoft Malicious Software Removal Tool differs from an antivirus product in three key ways: The tool removes malicious software from an already-infected computer.
Performing a full scan If the tool finds malicious software, you may be prompted to perform a full scan. Removing malicious files If malicious software has modified infected files on your computer, the tool prompts you to remove the malicious software from those files.
Reporting infection information to Microsoft The Malicious Software Removal Tool will send basic information to Microsoft if the tool detects malicious software or finds an error. MSRT will now start scanning your computer. Previous Article How can I change the default sleep timeout from command line? Next Article How to patch software vulnerabilities in Windows 10? Why does Windows 10 needs an antivirus software? In We need an antivirus software for Windows: In our digital world, malware and cyber attacks have become ubiquitous.
Click the Environment tab, click Whether a user is logged in the Program can run list. Set the Run mode to Run with administrative rights. Right-click the Advertisement node, click New , and then click Advertisement. On the General tab, enter a name for the advertisement. In the Package field, select the package that you previously created.
In the Program field, select the program that you previously created. Click Browse , and then click the All System collection or select a collection of computers that only includes Windows Vista and later versions. On the Schedule tab, leave the default options if you want the program to only run one time. To run the program on a schedule, assign a schedule interval.
This method requires you to restart the client computer after you set up the script and after you apply the Group Policy setting. Set up the shares. To do this, follow the steps in the Initial setup and configuration section. Double-click Logon , and then click Add.
The Add a Script dialog box is displayed. This method requires that the logon user account is a domain account and is a member of the local administrator's group on the client computer. In this scenario, the script and the tool will run under the context of the logged-on user.
If this user does not belong to the local administrators group or does not have sufficient permissions, the tool will not run and will not return the appropriate return code. For more information about how to use startup scripts and logon scripts, go to the following article in the Microsoft Knowledge Base:. You can examine the return code of the tool in your deployment logon script or in your deployment startup script to verify the results of execution.
See the Code sample section for an example of how to do this. The following list contains the valid return codes. At least one infection was detected and removed, but manual steps are required for a complete removal.
At least one infection was detected and removed, but manual steps are required for complete removal and errors were encountered. At least one infection was detected and removed, but a restart is required for complete removal and errors were encountered. At least one infection was detected and removed, but both manual steps and a restart is required for complete removal.
At least one infection was detected and removed, but a restart is required. No errors were encountered. Starting with version 1. Before version 1. The log file format has changed with version 1. If this log file already exists, the tool appends to the existing file.
You can use a command script that resembles the previous example to capture the return code and to collect the files to a network share. Version 1. Like the ANSI version, this log file will be appended to each month's release. The following example is an Mrt. The following is an example log file where no malicious software is found.
The following is a sample log file in which errors are found. For more information about warnings and errors that are caused by the tool, go to the following article in the Microsoft Knowledge Base:.
Operation failed. Action: Clean, Result: 0xE. Please use a full antivirus product! When you run the tool by using a startup script, error messages that resemble the following error message may be logged in the Mrt.
Note The pid number will vary. This error message occurs when a process is just starting or when a process has been recently stopped. The only effect is that the process that is designated by the pid is not scanned. This has been observed only in the removal of certain rootkit variants. When I test my startup or logon script to deploy the tool, I don't see the log files that are being copied to the network share that I set up. This is frequently caused by permissions issues. For example, the account that the removal tool was run from does not have Write permission to the share.
Right clicking on the application file then gives me the option of simply deleting it. Thanks to all. On balance just deleting the application file seems the easiest option. I will wait and see if the next MSRT update is installed by automatic updating.
If so I can leave the file MRT as it is not taking up much space. Those advocating an approach other than deleting don't explain why not to delete or are unsure. I can't speak for George but I have found that some enterprises rely on other tools and must remove the application when a non-support person inadvertently installs it. Some support staff are equally as guilty of this and have no clue that it was installed.
After a couple of cycles through the Vulnerability Management process, the application is flagged as a vulnerability and the "Patch Team" has no clue on how to handle the vulnerability because they don't patch that application.
Then we're stuck with trying to explain that the exe can be removed and walk them through the steps. For those not involved with managed systems SOHO , unless the application is causing problems, it's recommended to leave it and let it do its job.
I downloaded the MSRT but do not know how to remove it. Can you advise? This thread is locked. You can follow the question or vote as helpful, but you cannot reply to this thread. I have the same question Report abuse. Details required :.
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