There are always some problems during the use of the computer, such as the file cannot be accessed by the system or the folder access denied. Why does this happen? How to solve this problem? Let's look into it.
In general, the folder access denied is mainly due to insufficient virus or administrator privileges.
1. Computer virus
Computer virus may come from the connection of unsafe network or the use of unclean external hard drive. If there's virus hidden in certain folders, it may damage the administrator privilege and cause the folder access denied. Therefore, if you encounter a folder that access denied, you can check if it is caused by the virus. Usually, some mainstream anti-virus software can be used to fix such problems.
2. Insufficient administrator privileges
Many computer users may not use an administrator account but use a guest account to log in, and it resulting in some system important files cannot be accessed by the system. If you are experiencing this type of problem, you need to check user permissions. In addition to this, it also can be caused by the administrator did not add permissions for this folder.
If you encounter file cannot be accessed by the system, you can add permissions for the folder to fix this error. First of all, please make sure that you are log in by administrator account, and it is not inaccessible by the virus. Then do as the guide below:
In order to protect data security and avoid data loss after infection, we should develop the habit of regularly backing up system files and important data. How to backup files? Here provides you two methods to do this operation.
If you think backup files with Windows built-in tool is complicated, you can choose a third party software to complete the backup operation. Compare with other software, here I highly recommend Qiling Disk Master – a free powerful software which allows you to back up your files, folders, hard drives, partitions, etc. In an easy way. You can also do incremental backup and differential backup. Once the computer has a problem, you can easily restore the system and data to a normal state. Let's see the specific steps:
Step 1. Download, install and run Qiling Disk Master, select backup in the left sidebar. Then click File Backup.
Step 2. Click Folder or Files button to select the files you want to back up. And then, select the destination path to store the file backup images. Click Proceed to lunch the progress.
* Before starting backup, you can set more for the backup with two options below.
❈ Options: You can set more for your backup. Such as adding a comment so that you can distinguish them easily, enable email notification to get email or SMS notification, split, compress, encrypt (paid) the file backup image, etc.
❈ Schedule: This function can help you set an automatic file backup for daily, weekly, monthly, event triggers, USB plug in (please upgrade to Qiling Disk Master Professional to enjoy the last two features), and it can help to do an incremental or differential backup.
Step 3. When the progress is completed, click Finish to exit.
To avoid data loss caused by error 0X80070780 the file cannot be accessed by the system, backup data regularly can be a useful way. And Qiling Disk Master can be the best file backup software. Besides file backup, it also supports system clone, disk backup, partition clone and so on. You can also use this software to help you migrate your data or operating system when you want to upgrade the hard drive on your computer.