Hi - the BOINC installation process allows you to specify a different data storage location rather than the default C drive.
If you have previously configured BOINC to use a different drive, then use PatchMyPC to install an update, it configures BOINC to use the default drive. This makes your BOINC setup unusable - cannot run the projects you had configured and your history has disappeared. Note that your data is still there (in my case on drive f:), but that the new installation has no idea where it is.
The only fix is to uninstall BOINC and reinstall it and specify the location where your data resides
(this may help https://boinc.mundayweb.com/wiki/index.php?title=How_to_set_up_BOINC_on_another_drive ).
If you have previously configured BOINC to use a different drive, then use PatchMyPC to install an update, it configures BOINC to use the default drive. This makes your BOINC setup unusable - cannot run the projects you had configured and your history has disappeared. Note that your data is still there (in my case on drive f:), but that the new installation has no idea where it is.
The only fix is to uninstall BOINC and reinstall it and specify the location where your data resides
(this may help https://boinc.mundayweb.com/wiki/index.php?title=How_to_set_up_BOINC_on_another_drive ).