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Learn how to fix error code 0x803FB005 when downloading the applications from the Microsoft Store. Our guide offers various solutions for this common issue, as well as data recovery methods in case of any loss.

I. How to fix Windows error code 0x803FB005?
Windows error code 0x803FB005 generally occurs when downloading applications through the Windows App Store. This error may be related to app store failures, over-protection of third-party antivirus software, failure to update and install patches released by Microsoft in time, and system file corruption. Here are some practical fixes.
0x803FB005 error

1. Turn off antivirus software when downloading apps

Some third-party anti-virus software has problems of over-protection and incorrect blocking of applications, so we can turn off the anti-virus software before downloading the application, and download it later to see if the problem is resolved.

2. Reset Microsoft Store

Microsoft Store (App Store) can also cause error code 0x803FB005 if there is a malfunction. We can fix some glitches by resetting the Microsoft Store. The specific operation steps are as follows:
Step 1: Right-click (Start), select (Apps and Features).
Apps and Features
Step 2: On the application and function interface, find (store) and click (Advanced Options) under (Microsoft Store).
Microsoft Store Advanced Options
Step 3: Find the (Reset) button and tap it, the data of this app will be deleted when resetting. If you don’t want to delete the data, you can also try the (repair) function first. After the operation is complete, please restart the computer and check whether the problem is resolved.
reset store

3. Run the Windows Store Troubleshooter

Troubleshooting is a built-in troubleshooting tool of Windows system, which can help users troubleshoot and fix some problems. So we can run the Windows Store Troubleshooter to fix this issue. Proceed as follows:
Step 1: Run the computer, press the (Windows+I) key on the keyboard at the same time to open the setting interface. Then click into the (Update and Security) option.
Updates and Security
Step 2: Select (Troubleshooting) and click (Other troubleshooting).
other troubleshooting
Step 3: Find and click on (Windows Store Apps), and then click on (Run the troubleshooter). Afterwards, perform repairs according to the prompts, and then restart the computer to check whether the problem is resolved.
Troubleshooting the Windows Store

4. Perform Windows Update

Microsoft will provide patches for some faults, and we need to update and install patches in time. The specific steps are as follows:
Step 1: Run the computer, find the (Windows Update Settings) option in the search box in the lower left corner and enter it.
search for windows update
Step 2: Next, in the Windows Settings interface, select (Windows Update) on the left and click (Check for Updates) on the right. If an item has been detected that needs to be updated and installed, please follow the prompts. Then restart the computer to see if the problem is resolved.
Check for updates

5. Run SFC and DISM commands

The SFC (System File Checker) and DISM (Deployment Image Servicing and Management) tools are Windows built-in utilities that scan system files for errors and fix them automatically. If the error code 0x803FB005 is related to system file corruption, you can try this method.
Step 1: Search (cmd) in the search box in the lower left corner, right-click (Command Prompt) and select (Run as Administrator) to open the Command Prompt tool.
search cmd
Step 2: In the opened command prompt window, enter the command (SFC /scannow) and press the (Enter) key. Next, System File Checker will perform a system scan and fix problematic system files. If it prompts that SFC cannot repair the damaged file, please continue to the next step.
Enter the sfc command
Step 3: Type (Dism /Online /Cleanup-image /RestoreHealth) in the opened Command Prompt window and press the (Enter) key to repair corrupted system files. After the command is executed, you can run it again (SFC /scannow), then restart the computer and re-update Windows to check whether the current problem is resolved.
Enter the dism command
These are a few ways to fix error code 0x803FB005. If it has not been repaired, you can try to reset the computer or use the Windows Media Creation Tool to upgrade the system, and then check whether the problem is resolved. If you find that files are lost after the repair is completed or during daily use of the computer, you can check the following methods to scan and restore them.
II. (Extended information) Use Renee Undeleter to recover lost data

1. What is Renee Undeleter?

Renee Undeleter is a professional data recovery software that supports recovery of various types of data such as documents, photos, videos, and compressed files. In the event of accidentally deleting files, emptying the recycle bin, formatting the hard disk, deleting partitions by mistake, as long as the lost data has not been overwritten, this software has a chance to help you scan and recover files. The software has four functional modules: file recovery, format recovery, partition recovery and image creation, which can meet most data recovery needs.
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2. How to recover lost files with Renee Undeleter?

The specific steps to recover files with Renee Undeleter are as follows:
Step 1: Download, install and run Renee Undeleter on a Windows computer, and select the (File Recovery) option on the main interface.
Note: Do not install the software on the disk that needs to recover data, so as not to cause data overwriting. In addition, after the file is lost, please do not save new data to the same disk partition, so as not to damage or completely lose the lost file.
Select file recovery options
Step 2: Next, select the partition where the lost data is located and click on (Next).
Select target device for file recovery
Step 3: Select the (Quick Scan) option and click the (Next) button to scan.
Tips: The quick scan mode only scans the first 30GB of the remaining space of the selected disk. If the desired file is not found after scanning, you can use the deep scan mode to try to scan the hard disk partition again. It will take more time, but more data can be scanned.
File Recovery Quick Scan Options
Step 4: Wait for the scan to complete, you can double-click the file to preview, then check the file to be recovered, click the (Recover) button to restore the file to another disk.
File Recovery Select files to be restored