My PC has 2 partition with Win7 32bit and Win7 64bit
I was used to run Boinc only on the 32bit, but yesterday I selected to run it onto the 64bit too; I downloaded the correct version but in setting the preference I did something wrong and the CPU usage for both the 2 cores is set to 100%.
The result is that the PC is stuck and I can not modify the prefs running Boinc Manager.
Which file should I edit / delete in the Boinc folder on my PC?
Thanks

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Go to the BOINC Data directory (default a hidden directory at C:\Programdata\BOINC, so fill that in in Windows Explorer and hit Enter) and delete global_prefs_override.xml, then hand edit global_prefs.xml with Notepad and change <max_ncpus_pct>100</max_ncpus_pct> to <max_ncpus_pct>50</max_ncpus_pct>, save the file (do not do Save As!)

Next to exit BOINC & restart it:
Right click ion the Taskbar and choose Start Task Manager.
When that has finally opened, go to the Processes tab, select boinc.exe and click End process. Then do Start->All Programs->BOINC->BOINC Manager.

If for whatever reason that doesn't work, just reboot the computer.

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This fixed the problem.
Many thanks

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