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Home > IT Articles > IT Articles > Invalid MS-DOS Function when copying to Google Drive
Invalid MS-DOS Function when copying to Google Drive
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Most common fix is to edit the registry.  We can do this if you want, but if you feel comfortable the steps are pretty straightforward 

1. Hit Windows key and R key at same time to open RUN dialog box
2.  Enter REGEDIT and press ENTER
3. Navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\System
4. Right click the right window pane the select DWORD (32-bit) Value
5. For the new value name enter        CopyFileBufferedSynchronousIo   I would copy and paste this
6.  For the Value Data enter 1
7. Click OK
8. Close Registry and restart PC

This should work.  If not, there may be a hard drive issue which we would run a chkdsk c: /f /r   where C: is the drive we are copying from

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