All about U4A Files

The U4A file type is primarily associated with UnInstaller Archive.

U4A	File extension: U4A
	File type:	UnInstaller Archive files

What is a U4A file?

U4A files mostly belong to UnInstaller Archive. Use our "Online U4A Text Viewer" below to analyze your U4A file and to see all text it contains.

How to open a U4A file

You need a suitable software like UnInstaller Archive to open a U4A file. You need a suitable software like UnInstaller Archive to open a U4A file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your U4A file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a U4A file directly in the browser:. Just drag the file onto this browser window and drop it.

Online U4A Text Viewer

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Can't Open Your .U4A File? Try These Steps

U4A files can come from different programs and aren't universally openable.

Identify the Source: These are most commonly UnInstaller Archives created when backing up software before removal, but may also be proprietary data from older system utilities.
Check the Header: Open the file in a hex viewer to inspect the first few bytes.
- "PK" indicates a standard ZIP-based archive.
- Readable text or XML suggests a configuration file.
- Unreadable binary data points to a proprietary backup format.
Use the Original Software: You typically need the original program to open it; try legacy tools like MicroHelp UnInstaller or McAfee UnInstaller, or ask the sender if unsure.
Use this Webpage: Drag and drop the file into our viewer to detect the format, extract readable text/metadata, and preview when possible.

Technical Data for U4A File Extension

Related files:

dpa, xxl, sign

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: QuickClean.Archive, FileType: QuickClean Archive, AppName: McAfee QuickClean Launcher

ProgramID: QuickClean.Archive
EXEFile: %ProgramFiles%\McAfee\MCAFEE~3\Uni.exe /Restore:%1

ProgramID: QuickClean.Archive
EXEFile: %ProgramFiles%\McAfee\MCAFEE~2\Uni.exe /Restore:%1

ProgramID: QuickClean.Archive
EXEFile: %ProgramFiles%\McAfee\QUICKC~1\Uni.exe /Restore:%1

ProgramID: QuickClean.Archive
EXEFile: %ProgramFiles%\McAfee\MC7BF2~1\Uni.exe /Restore:%1

ProgramID: UnInstaller.Archive
EXEFile: %ProgramFiles%\CyberMedia UnInstaller\restore.exe -a -f%1

ProgramID: QuickClean.Archive
EXEFile: %ProgramFiles%\McAfee\MCAFEE~1\Uni.exe /Restore:%1

Show all 7 listings To Top

a u4a UnInstaller Archive file is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with U4A files

Associate the U4A file extension with the correct application.
Update your software that should actually open UnInstaller Archive files. Because only the current version supports the latest U4A file format. Search, therefore, e.g. on the manufacturer website after an available UnInstaller Archive update.
To make sure that your U4A file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .U4A file online - secure, fast, and no downloads needed.