Hi @Sandra Rampe
Which type of OneDrive are you using, OneDrive for Business or personal OneDrive?
Have you tried changing the Internet environment? If possible, it is recommended that you connect to a mobile phone hotspot to test.
Please refer to steps in "Reset OneDrive" first.
It is recommended to locate to C:\Users\UserName\Appdata\Local\Microsoft\Onedrive\24.XXX.XXX.XXXX
, and run OneDriveSetup.exe for a check.
(Please note, the "UserName" is your Windows account name. If you cannot find "Appdata" folder, please go to File Explorer > View in Show/hide group > check the box of "Hidden Items". Besides, "24.XXX.XXX.XXXX" is the version number of OneDrive.)
If this application is not found, you may go to folder to run OneDriveSetup.exe in C:\Program Files\Microsoft OneDrive\24.XXX.XXX.XXXX
.
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