What Causes the Input/Output Error for qBittorrent?

We investigated this particular issue by looking at various user reports and the repair strategies that were commonly used to troubleshoot and resolve the issue by users finding themselves in a similar situation. Based on our investigations, there are several different scenarios that are known to trigger this particular error message:

No permission for Custom download location – There’s a chance that the issue is caused by a case of permission access. If the downloading location is changed from default to custom, then qBittorrent might need permissions to read and write in that location. Several users finding themselves in a similar situation have reported that they managed to resolve this issue by running the application as an administrator or by keeping the default location for downloading.Windows defender interfering – Another possible case in which this error occurs is when your Windows is using the Windows Defender security system for keeping your system safe. Since the security system stops any untrusted or harmful kind of files, it is possible that it can interfere with your torrent files and make them stop working.

There can be many other unknown reasons for the I/O errors on qBittorrent due to other programs or devices. But for the most related and common ones related to itself and has been solved are mentioned below.

Method 1: Running qBittorrent as an Administrator

As some users have reported, opening the qBittorrent by selecting the option of “Run as administrator” has the potential of resolving the issue automatically. Because when you run any application with run as administrator command, you’re allowing your system to accept that the program is safe to run any of the administrative commands. This also helps qBittorrent with the permissions for the need to access different location on storage. To open qBittorrent as administrator follow the below steps:

Method 2: Disabling the Windows Defender in Windows 10

Some affected users, who updated their windows from older version to Windows 10, were able to resolve their issue by disabling the Windows Defender and installing a third party Antivirus. And disabling Windows Defender in Windows 10 is relatively more different as what you would have had to do on Windows 7, 8 or 8.1. You can disable it in two different methods; one is the temporary disable, and the other one is permanent disable of Windows Defender. The temporary method will be using the conventional Start Menu, in which Windows will re-enable Windows Defender within a couple of days. And the permanent method will be in your computer’s Registry Editor. We are going to do the permanent method and install a third party Antivirus, which can replace Windows Defender work.

Method 3: Add User

In some cases, the security settings of the application might be preventing it from being accessed on your account. Therefore, in this step, we will be adding a user from the security settings. For that:

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