This post introduces how to fix the Windows 11 cannot access shared folder error.
you’re able to refer to this post to get more details.
The transfer speed of big files (3GB+) from Windows to NAS is on expected level.
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It works more or less OK.
BUT, the transfer speed of big files (3GB+) from NAS to Windows is very low.
I use different Windows Clients to transfer files e.g.
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Windows File Explorer or Windows Commander.
The results are more or less the same, the reading operation is about 2x slower than writing operation.
-from Microsoft
How to fix the Windows 11 Pro 22H2 slow SMB download issue?

you’re able to load the KB5017389 update.
However, this one is optional and does not contain security updates.
you might go toSettingsby pressing theWindows + Ikeys together and navigate to theWindows updatepart.

If you find the optional KB5022913 update, clickDownload and Installto install it.
Go to its official website and key in KB5017389 in the Search box.
Then, nudge the Download button to start the process.
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After downloading, it’s possible for you to install it.
This article will provide you with detailed information about Xcopy vs Robocopy.
Thus, we will show you the first program to help you to send big files for free.

MiniTool ShadowMaker enables you to transfer big files free from PC to PC with the IP address.
Step 1: Download MiniTool ShadowMaker by clicking the following button.
MiniTool ShadowMaker TrialClick to Download100%Clean & Safe
Step 2: Launch it and go to theSyncinterface.

Step 3: ClickSourceto choose items that you want to transfer and clickOK.
Step 4: Under theDESTINATIONtab, there are four paths available:Administrator,Libraries,Computer, andShared.
Step 5: ClickSync Nowto start synchronization.
This will take a few minutes.
When you have two computers, how to sync files from one computer to another computer?
This post will give you 5 useful solutions to solve it.
Step 1: In Windows 11, pressWin + Ito enter theSettingspage.
Step 2: Go toSystem > Recovery.
Step 3: Under theRecovery optionssection, click theGo backbutton.
Step 4: Choose the reason for uninstalling Windows 11 2022 Update (22H2) and clickNextto continue.
Step 5: When you are asked to check for updates again, clickNo, thanks.
Step 6: Continue the rollback operation by following the on-screen instructions.
Once the operations are finished, your Windows will be reverted to Windows 11 21H2 or Windows 10.
Step 1: Find the folder or files you want to compress.
Step 2: Right-click them to choose theSend tomenu.
Then, choose theCompressed (zipped) folderoption.
Step 3: Now send it to the destination location and un-compress it to access your files.
Also see:What Does Compressing a File Do?
[Pros and Cons]