The archive is either in unknown format or damaged как исправить

Ошибка [архив поврежден или имеет неизвестный формат] в WinRAR

В 80% случаев причины повреждения архивов связаны с неправильным (неполным) скачиванием его с интернета и копированием с флешки на диск. В остальных 20% случаев целостность архива нарушает антивирус, если обнаруживает опасную сигнатуру в упакованных файлах.

Если после повторного скачивания или копирования при открытии архива вновь появляется диагностическое сообщение [архив поврежден или имеет неизвестный формат], воспользуйтесь встроенным в WinRAR инструментом восстановления. Запустите архиватор и через окно проводника найдите и выберите проблемный архив. Нажмите на верхней панели кнопку «Исправить».

Расширение архива определяется автоматически, но можно задать его явно (RAR или ZIP). Выберите папку для сохранения восстановленных файлов и нажмите ОК.

Через пару секунд (или минут – в зависимости от размера архива) процесс восстановления завершится, и в выбранной папке появится файл rebuilt_имя_архива.rar, содержащий уцелевшую информацию.

How to Fix the Archive Is Either in Unknown Format or Damaged

When trying to open a compressed ZIP or RAR archive, a lot of users receive an error message «the archive is either in unknown format or damaged«. What causes the error? How to fix it. Now, this article from MiniTool Partition Wizard tells you the answer.

According to the user reports, “the archive is either in unknown format or damaged” error often occurs when they try to open or download a zipped or a RAR file. Windows File Explorer can’t open the zip files and the WinRAR says the file is damaged.

Here is a user report from the Tomshardware forum:

I tried downloading a world for terraria with curseforge and mediafire. Both options turned into a WinRAR file and when I try and open them they say “the archive is either unknown format or damaged”. Please tell me how to fix this. I’ve tried using 3rd party zip such as 7zip and none have worked so far. https://forums.tomshardware.com/threads/winrar-archive-the-archive-is-either-unknown-format-or-damaged.3737084/

Why the Archive Is Either in Unknown Format or Damaged?

Before solving the “the archive is either in unknown format or damaged” error, it’s important to figure out what causes the problem. After analyzing extensive user reports, we find this error message may appear in the following several scenarios:

• The WinRAR software is faulty or too old.
• The network is unstable when downloading the archive, resulting in file errors.
• Disk corruption leads to file corruption.
• The file is too old.
• An error occurs while compressing the file.
• The archive extension is corrupted.
• The folder where unpacked files are not allowed.

Now, you should have known the possible reasons behind the “the archive is either in unknown format or damaged” issue. Please try the following the archive is either in unknown format or damaged solutions to fix it.

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How to Fix the Archive Is Either in Unknown Format or Damaged Error?

There are 8 applicable solutions to the “the archive is either in unknown format or damaged” error. You can try them in order until the error gets fixed.

Solution 1: Re-download the Zipped or RAR Archive File

The issue with “the archive is either in unknown format or damaged RAR” may be the result of an incomplete file download. Then, you need to download the compressed or RAR archive again.

After that, you can check if the “the archive is either in unknown format or damaged” error disappears. If not, the file may indeed be in a corrupt state. Well, you can refer to the next solution.

Solution 2: Fix Disk Errors

Sometimes, disk corruption may lead to file corruption. So, to fix the “the archive is either in unknown format or damaged” error, you should fix the disk errors. Here are two options for this error. You can try one of them.

Option 1: Use CHKDSK Utility

You can use the CHKDSK utility to investigate and repair bad sectors in the hard disk to fix this error.

Step 1: Press the Win + S key and type cmd.exe in the search box.

Step 2: When the Command Prompt appears, right click on it and select Run as administrator.

Step 3: In the Command Prompt window, type the chkdsk c: /f /r /x command. Then press Enter to execute.

Step 4: After execution, restart the computer and check if the error is resolved.

Option 2: Use MiniTool Partition Wizard

If the above method fails to solve this issue, you can use a professional disk management tool to check hard disk problems. It is recommended that you try MiniTool Partition Wizard. How to use MiniTool Partition Wizard to check hard disk problems? The steps are as follows.

You can use the Check File System and Surface Test feature of MiniTool Partition Wizard to solve the archive is either in unknown format or damaged Windows 10 error. Besides, this tool can be used to Move/Resize partitions, Extend Partitions, Wipe Disk, and upgrade to larger disks without data loss, etc.

Step 1: Click on the download button to get MiniTool Partition Wizard. Then launch MiniTool Partition Wizard to get the main interface.

Step 2: Select the partition on the hard disk and select Check File System on the left action panel.

Step 3: You will see two options in the new window: Check only and Check & fix detected errors. Select the Check & fix detected errors option. After that, click on the Start button. Immediately after clicking Start, MiniTool Partition Wizard will check and repair the file system.

To check for bad sectors on a hard drive, you can use the Surface Test feature of MiniTool Partition Wizard, but this tool can’t repair the bad sectors.

Step 1: Select the partition on the hard drive and select Surface Test on the left operation panel.

Step 2: In the pop-up window, click on the Start Now button to check bad sectors for Windows 10.

After that, MiniTool Partition Wizard will show you the result of the testing. Green block means no bad sector; red block means some bad sectors. If there are too many bad sectors on the hard drive, you need to replace the disk.

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Solution 3: Use the Repair Archive in WinRAR

WinRAR supports users to use the Repair archive feature to repair damaged zip files. It will scan corrupt data files for errors and fix them automatically for us. The recovery time depends on the size of the data. To fix “the archive is either in unknown format or damaged RAR”, you can refer to the following steps:

Step 1: Open WinRAR on your computer and find the corrupted zip file in the address bar of the client.

Step 2: Select the corrupted zip file and click on the Repair icon. Alternatively, double-click on the corrupt RAR file to open it, then click on Tools on the menu bar and select the Repair archive option.

Step 3: The application will ask you where you want to save the file on your computer. Select your desired location and click on the OK button.

Step 4: The file editing process will begin and may take some time, which depends on the size of the file.

Step 5: Click on the Close button to close the window, and then go to the folder containing the edited archive. It will be named rebuilt.filename.rar or rebuilt.filename.zip.

After that, try extracting the RAR file and see if your computer still has the error “the archive is either in unknown format or damaged”.

Solution 4: Open the Archive File Using 7-Zip

Trying another software to open the archive file such as the 7-Zip may fix the “the archive is either in unknown format or damaged” error. You can go to this link to download the 7-Zip archive file software on your PC. Then click on Download based on whether your Windows OS is 64-bit or 32-bit.

Solution 5: Move the Corrupted Archive to Another Folder

If you unzip the file in an unauthorized directory, such as the AppData folder of the C drive, the unzip application may not be able to read and execute it. So, move the file to your desktop or other hard drive and extract it to fix the archive is either in unknown or damaged error.

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Solution 6: Use Windows Default Decompressor

Windows 10 comes with a compression and decompression function, but it is only effective for compressed files in ZIP format. To solve the archive is either in unknown format or damaged Windows 10, you can use this tool.

Step 1: Right-click on the compressed (zipped) folder.

Step 2: Choose Extract All from the context menu.

Step 3: By default, the compressed file will be decompressed in the same location as the compressed folder

Solution 7: Scan the Zipped Folder for Virus

If you get the zip file/folder from unofficial or other unknown websites, the file/folder may contain a virus or malware, causing “the archive is either in unknown format or damaged” error. So, we recommend you perform a virus scan.

Step 1. Type virus in the search box and double-click on the Virus & threat protection result.

Step 2. Inside the Windows Defender Security Centre, click on Run a new advanced scan.

Step 3. Select Custom scan from the list of scan options and click on the Scan now button.

Step 4. In the pop-up File Explorer window, select the affected zip folder and click on Select Folder. Then you will go back to the Windows Security screen automatically, click on Scan now again to start scanning the zip folder for the virus.

If any virus or malware is detected, you need to re-download the zip file/folder from a trusted source.

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Solution 8: Update to the Latest Version of WinRAR

The ” the archive is either in unknown format or damaged ” error can also be caused by the fact that you are using an old version of WinRAR. To avoid this, you should regularly check WinRAR and update it to the latest version.

Bottom Line

Now we have reached the end of this article. The above content is all about the reasons for the “the archive is either in unknown format or damaged” error and solutions to the problem.

After trying so many solutions, we believe that you may have successfully solved your problem. If you have any suggestions or need any help when you use MiniTool Wizard Partition, you can send us an email at [email protected] or leave a comment below.

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About The Author

Vega joined MiniTool as an editor after graduation. She enjoys helping people with computer problems, including disk management, data recovery, and more. She is constantly expanding her knowledge in related fields. And she will continue to bring more easy-to-understand professional articles to help people solve various problems on the PC. In her daily life, Vega enjoys hanging out with friends, shopping online and listening to music. She is someone who knows how to enjoy life.

Fix: The Archive is Either in An Unknown Format or Damaged

If you try to open a compressed ZIP or RAR archive file and encounter the error message «The archive is either in an unknown format or damaged«, then this article can help you. In this article, we will find out the cause and provide an appropriate solution to try to help you fix this problem. Like other forms of files, archive files are prone to some logical problems. You may encounter this error due to corruption of RAR or ZIP compressed files. The most common reasons for archive file corruption are severe virus infection, and CRC (cyclic redundancy check) errors.

• 1. Run an antivirus scan
• 2. Repair corrupted/damaged RAR/ZIP file with WinRAR
• 3. Use a third-party RAR file repair tool to repair corrupted or damaged RAR/ZIP archives

1. Run an antivirus scan

If the compressed or RAR archive file is damaged, when you try to open the archive, you may receive the archive is either in an unknown format or damaged message. You can use Windows Defender or any well-known third-party antivirus software to run a complete system antivirus scan. If the problem is still not resolved, you can try the next solution.

2. Repair corrupted/damaged RAR/ZIP file with WinRAR

WinRAR has a built-in file repair function, you can try to use WinRAR to repair damaged RAR/ZIP archive files. Check the following steps.

Step 1. Open WinRAR on the computer. In the address bar of WinRAR, you can find the location of the corrupted RAR/ZIP file.

Step 2. Next, you can select the damaged RAR/ZIP file and click the «Repair» button on the toolbar.

Tip: You can also find the damaged RAR/ZIP file, and then right-click it to select «Open with WinRAR«. Then, you can click on the tool on the toolbar and select Repair Archive.

Step 3. In the pop-up window, you can click Browse to select the destination path or folder to store the repaired RAR/ZIP file, and then click OK to start repairing the damaged RAR/ZIP file.

Step 4. After the repair process is completed, you can close the file repair window and then open the destination folder to check the repaired RAR/ZIP archive file. The name of the repaired file can be rebuilt.filename.rar or rebuilt.filename.zip.

3. Use a file repair tool to repair damaged/corrupted RAR/ZIP files

You can also use a third-party RAR file repair tool to repair corrupted or damaged RAR/ZIP archives. Top RAR/ZIP archive file repair tools include: PowerArchiver, DiskInternals ZIP repair, Zip2Fix, Object repair Zip, Remo repair RAR, DataNumen RAR repair, SysInfoTools archive recovery, Rar repair tool, ALZip, etc. Many of them are not free.

You may also find some online RAR/ZIP archive file repair websites that allow you to upload the damaged RAR file and download the repaired file. However, the easiest and safest method we recommend to repair RAR/ZIP files is still WinRAR.

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