Access denied if I want to move file or folder.

Hi Richard, 

I tested Windows 10 x64 1903 + Sbie latest beta and did not encounter this issue. 
Please, try the latest beta, found here: SBIE BETA VERSIONS

If the issues persist, please follow the guidelines to provide all the missing info so I can re-create the scenario:
How to report problems with Sandboxie

Regards,

Thank you. This Problem was solved.

Hope this version release.

Hello~ 

You can try to 1. Get Rid of Write Protection on Hard Drive:

• Go to Start and tap on the “Run” option.
• Type “regedit” into the command box.
• Now, go to this path: “ HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\StorageDevicePolicies”
• After that, double click on the “WriteProtect” key and get the value changed to zero.

2. Or you can Check Event Log for any Errors:

• Tap Win key + R to open the Run window. Now, type “eventvwr” and tap Enter.
• Hit Windows Logs as well as System.
• Find the errors if any! There will be a red exclamation mark at the end if there are any errors.
• Simply check the information in details.

Then start Command Prompt as Administrator:

• Tap the Start button, go to All Programs, and tap Accessories.
• Simply Right-click on Command prompt, and again tap on Run as administrator.
• When the User Account Control box comes up, confirm it, and tap Continue.

If this error causes data loss issues, you'd better retrieve the data first. You can try Bitwar Data Recovery if needed.

Hope it will help you.