![]() Type StorageDevicePolicies as the new key name and press Enter.Right-click the Control key and select New > Key.If the StorageDevicePolicies key does not exist under Control, do the following. HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\StorageDevicePolicies Navigate to the following registry location.How to open and edit the Windows registry.Change write protection through the Windows registryīy following the steps below, you can enable or disable write protection on your USB flash drive through the Windows registry. If you want to set the flash drive to read-only for everyone, in step 9, uncheck all boxes in the Allow column, except for the Read entry. Verify if the USB flash drive lets you modify its contents now. If the USB flash drive is still read-only after checking the Allow checkbox in step 9, repeat the steps and check the checkbox for the Full Control entry. The security permissions may be set so that all users only have Read permissions to files on the flash drive.įollow the steps below to check if security permissions need to be changed. If using DiskPart, as detailed above, does not work to clear the read-only attribute of a USB flash drive, the security permissions may need to be changed. When you are finished, type exit to quit the program.Ĭhange security permissions in flash drive properties.Or, to set the read-only attribute (making the flash disk write-protected), use the command attributes disk set readonly. To clear the read-only attribute (making the disk writable), use the command attributes disk clear readonly.You can list the attributes of the disk with the command attributes disk.In this example, we want to work with disk 1, so the command is select disk 1. Select your USB flash drive with the select disk command.In this example, we know that Disk 1 is our USB flash drive because its size is 14 GB. Use the disk size to determine which one is your USB flash drive. At the DISKPART> prompt, type list disk and press Enter.If you receive a User Account Control prompt asking for permission to continue, click Yes.Press Windows key+ R to open the Run box. ![]() You can use the Windows DiskPart command-line utility to enable or disable read-only mode on your USB flash drive. Using DiskPart to change read-only settings This action effectively sets all files and the device to read-only mode. If your device has this switch, move it to the "Lock" position. The write protection switch is useful for keeping the contents of your drive safe from malware when you need to view them on a public computer. Some USB flash drives have a write protection switch on the side or bottom. Fix USB flash drive issues with chkdsk.Change write protection through the Windows registry.Change security permissions in flash drive properties.Using DiskPart to change read-only settings.TRYING TO MOVE FILE WORKS IF DONE WITHIN DEVICE MEMORY try else if (Environment.MEDIA_MOUNTED_READ_ONLY. I have been working on this issue for a week already and I haven't found a solution for it, so any help would be appreciated. I can however call the canRead() method on the file and it always returns true The issue can be seen when I create a file using a path inside the sd card and I call the canWrite() method which always returns false. What I have tried is checking the state of the sd card and allowed my app to get write permissions from the manifest as well as programmatically which I believe to be correct. I have put in files from my computer and verified that the files are being stored there through device monitor. I went into android device monitor and under file manager I found the path for the sd card to be "/storage/57e5-053e". Since this method returns the device memory there is not another method that would return the path of the sd card. should return the path of the SD card but returns internal device memory The reason for this is that when I call the method: Environment.getExternalStorageDirectory().toString() One issue can be that when I search for the files inside the sd card I am hardcoding the path. The issue arises when I try to do the same within the sd card files I believe that the problem is asking for write to sd card permissionsĬurrently I can move a file from internal memory to a file withing internal memory. I'm currently not sure what is the issue that im having with my app.
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