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Here's how to Fix Error 0x80071129, The tag present in the reparse point buffer is invalid in Windows 11.

i. Here are some tips on how to fix Error 0x80071129, The tag present in the reparse point buffer is invalid in Windows:

* **Run Chkdsk.** Chkdsk is a Windows utility that can check the integrity of your hard drive and fix any errors it finds. To run Chkdsk, open a Command Prompt as administrator and type the following command:

```
chkdsk /f /r
```

* **Reset the OneDrive Cache.** OneDrive stores a cache of files on your computer to improve performance. If this cache becomes corrupted, it can cause Error 0x80071129. To reset the OneDrive cache, open the OneDrive app and click on the three dots in the top right corner. Then, select Settings - Advanced. Under the Offline Files section, click on the Reset button.

* **Run SFC and DISM.** SFC and DISM are Windows utilities that can scan your system for corrupted files and repair them. To run SFC, open a Command Prompt as administrator and type the following command:

```
sfc /scannow
```

To run DISM, open a Command Prompt as administrator and type the following command:

```
DISM /Online /Cleanup-Image /RestoreHealth
```

* **Contact Microsoft support.** If you are still having problems, contact Microsoft support for help.

ii. A reparse point is a file system object that allows a file or directory to have multiple meanings or interpretations. For example, a reparse point can be used to create a symbolic link, a junction point, or a hard link. The tag present in the reparse point buffer is a unique identifier that is used to identify the reparse point.

The reparse point buffer is a memory location that stores the data for a reparse point. The data in the reparse point buffer includes the tag, the type of reparse point, and the data that is associated with the reparse point.

Error 0x80071129, The tag present in the reparse point buffer is invalid occurs when the data in the reparse point buffer is corrupted or when the reparse point buffer is not properly initialized.

iii. Here are some known errors when using Windows' reparse point:

* **Error 0x80071129, The tag present in the reparse point buffer is invalid.** This error occurs when the data in the reparse point buffer is corrupted or when the reparse point buffer is not properly initialized.
* **Error 0x80071130, The reparse point is not supported.** This error occurs when you try to create a reparse point that is not supported by the file system.
* **Error 0x80071131, The reparse point is not valid.** This error occurs when you try to create a reparse point that is not valid for the file system.
* **Error 0x80071132, The reparse point is already present.** This error occurs when you try to create a reparse point that already exists.
* **Error 0x80071133, The reparse point is not accessible.** This error occurs when you try to access a reparse point that is not accessible.

If you encounter any of these errors, you can try the following solutions:

* **Run Chkdsk.** Chkdsk is a Windows utility that can check the integrity of your hard drive and fix any errors it finds. To run Chkdsk, open a Command Prompt as administrator and type the following command:

```
chkdsk /f /r
```

* **Reset the OneDrive Cache.** OneDrive stores a cache of files on your computer to improve performance. If this cache becomes corrupted, it can cause reparse point errors. To reset the OneDrive cache, open the OneDrive app and click on the three dots in the top right corner. Then, select Settings - Advanced. Under the Offline Files section, click on the Reset button.

* **Run SFC and DISM.** SFC and DISM are Windows utilities that can scan your system for corrupted files and repair them. To run SFC, open a Command Prompt as administrator and type the following command:

```
sfc /scannow
```

To run DISM, open a Command Prompt as administrator and type the following command:

```
DISM /Online /Cleanup-Image /RestoreHealth
```

* **Contact Microsoft support.** If you are still having problems, contact Microsoft support for help.

Learn more@ https://www.youtube.com/c/ITGuides/search?query=Windows%2011.