I updated my Boinc client like I always do. Make a backup of the boinc data directory, uninstall old version, install new. When I started the new version there were no projects listed or tasks running. When I checked the Boinc data directory was gone. It's hidden by default and is not removed during an uninstall but for some reason it was gone. I dropped my backup into the folder but the client will not see it. I uninstalled everything again and did another reinstall. I let the install go as I always do using the default locations. When I look the the BOINC data directory folder is not there after a clean install. I've tried everything I can think of but the client will not recognize the copy of the data directory I have. Anyone have any ideas as to what happened and how to fix it?

Where does BOINC place the new data directory? The path is shown in the BOINC event log (ctrl+shift+E).

Gruß,
Gundolf

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Computer sind nicht alles im Leben. (Kleiner Scherz)

Very difficult without knowing things such as your operating system, or the BOINC version(s) involved.

If Windows, check what it says in the registry at HKEY_LOCAL_MACHINE\SOFTWARE\Space Sciences Laboratory, U.C. Berkeley\BOINC Setup what the DATADIR entry is, and if that one's the same as where you put the data directory on your system. If not, change the path here to where your data directory is, then (exit and) restart BOINC.

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The event log says 7/7/2013 5:41:55 PM | | Data directory: C:\Documents and Settings\All Users\Application Data

There is no folder named BOINC there for some reason. There's a bunch of stuff there that should be in the BOINC folder but it is scattered around in the App Data folder.

The event log says 7/7/2013 5:41:55 PM | | Data directory: C:\Documents and Settings\All Users\Application Data

There is no folder named BOINC there for some reason. There's a bunch of stuff there that should be in the BOINC folder but it is scattered around in the App Data folder.

Sounds as if you missed 'BOINC' out when you specified the Data directory, the default directories are:

The default directory where BOINC will install the data files to is:
Windows 98/SE/ME: C:\Windows\All Users\BOINC\ or C:\Windows\Profiles\All Users\BOINC\ (*)
Windows 2000/XP: C:\Documents and Settings\All Users\Application Data\BOINC\ (*)
Windows Vista/Windows 7: C:\ProgramData\BOINC\ (*)
Linux: wherever you unpack it/BOINC/
Macintosh OS X: /Library/Applications Support/BOINC/

(*) This directory may well be hidden, so either put the path to it directly into Windows Explorer, or instruct Windows Explorer to show hidden files and folders.

http://boincfaq.mundayweb.com/index.php?view=592&sessionID=327c023bf733540cd2fbdd8dbf27844e

Claggy

Very difficult without knowing things such as your operating system, or the BOINC version(s) involved.

OS is XP SP3. Boinc version 7.0.64

If Windows, check what it says in the registry at HKEY_LOCAL_MACHINE\SOFTWARE\Space Sciences Laboratory, U.C. Berkeley\BOINC Setup what the DATADIR entry is, and if that one's the same as where you put the data directory on your system. If not, change the path here to where your data directory is, then (exit and) restart BOINC.

I used the default directory. Registry has the correct default location. I have the OS set to show hidden files and folders.

Ever have a face/palm event? I just had one.

Sounds as if you missed 'BOINC' out when you specified the Data directory,

Claggy, you were right on the money. It's been right in front of me all day long. Forgot to add \Boinc to the destination pathway. All is good. Thanks for all the responses. I'm going to go bang my head on the desk for 5 minutes.
Still have no idea where the boinc data folder went during the upgrade. Glad I had a backup.