Hi Andrei! Thanks for writing. I am Tin, and I am an independent advisor. I am so happy to offer you any needed assistance today. Please keep in mind that this user-to-user community forum is open to the public.
That was really so good of you to give a detailed description. As far as I get it, your current situation is such that when you clicked on a file stored in a cloud, such as OneDrive or iCloud, your computer directly and automatically download the file anymore; your configuration does not possess the appropriate setting, i.e., "Allow automatic file download requests by previous Blocked apps."
This usually happens if you have OneDrive Files On-Demand or similar technology. The files will appear in your file explorer, but they will stay online only until the time of access. Now let's get started on a complete diagnosis and fix.
Stepwise Guide
- Determine File Status
Right-click on the file that is not opening and determine the icon status:
Cloud icon: File is online-only.
Green check mark: File is available locally.
Sync icon: File is in download/sync process.
Do not proceed until the cloud icon stops, and the file does not download on open.
- Allow AutoFile Downloads (Windows Pro only)
If you run Windows 11/10 Pro, perform the following:
Press Win+R - type gpedit.msc - hit Enter.
Go to:
Computer Configuration > Administrative Templates > Windows Components > Attachment Manager
Search for: "Do not preserve zone information in file attachments" — set this to DISABLED.
Next, navigate to:
Computer Configuration - Administrative Templates - Windows Components - OneDrive
Look for and allow, if it exists:
"Allow apps to automatically download cloud-stored files"
Reboot your system.
3.Registry Tweaks (missing option for Home edition)
If you're in Windows Home or if the option is missing in Group Policy, do this:
Press Win + R - type regedit - Enter.
Go to:
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\CloudFiles
If there is no CloudFiles key, right-click on Windows - New - Key - name it CloudFiles.
Within CloudFiles, right-click on the right pane → New → DWORD (32-bit) Value
Name it: DisableAutoDownload
Set value to: 0
Restart the computer.
4.OneDrive Settings
Also, check the OneDrive settings:
Right-click the OneDrive icon in the system tray - Settings.
On the Sync and Backup tab, make sure:
Files On-Demand is enabled.
Under Manage backup verify the folders required are selected.
Logout and Login into OneDrive again if necessary.
5.Windows Security / Controlled Folder Access
Sometimes Controlled Folder Access blocks OneDrive from downloading files:
Go to Windows Security > Virus & Threat Protection > Manage ransomware protection.
If Controlled folder access is on, click Allow an app through Controlled folder access and add:
OneDrive.exe
Explorer.exe
Could you please try out these steps and let me know if it works out? And, in case that any other error arises, I would love to have more information it.
Regards,
Tin