I can't get Boinc to run and get the following messages : The BOINC client has exited three times within the last five minutes. Would you like to restart it again?

and from the log file:

1/5/2015 9:34:41 AM | | Starting BOINC client version 7.4.27 for windows_x86_64
1/5/2015 9:34:41 AM | | log flags: file_xfer, sched_ops, task
1/5/2015 9:34:41 AM | | Libraries: libcurl/7.33.0 OpenSSL/1.0.1h zlib/1.2.8
1/5/2015 9:34:41 AM | | Data directory: C:\ProgramData\BOINC
1/5/2015 9:34:41 AM | | Running under account OWNER
1/5/2015 9:34:41 AM | | [error] Couldn't parse account file account_www.gpugrid.net.xml
1/5/2015 9:34:41 AM | | [error] Couldn't parse statistics_www.gpugrid.net.xml
1/5/2015 9:34:41 AM | | Failed to delete old coproc_info.xml. error code -110
1/5/2015 9:34:41 AM | | CUDA: NVIDIA GPU 0: GeForce GT 630M (driver version 335.58, CUDA version 6.0, compute capability 2.1, 2048MB, 1890MB available, 250 GFLOPS peak)
1/5/2015 9:34:41 AM | | OpenCL: NVIDIA GPU 0: GeForce GT 630M (driver version 335.58, device version OpenCL 1.1 CUDA, 2048MB, 1890MB available, 250 GFLOPS peak)
1/5/2015 9:34:41 AM | | Using state file client_state_next.xml
1/5/2015 9:34:41 AM | | Host name: HP-ENVY
1/5/2015 9:34:41 AM | | Processor: 8 GenuineIntel Intel(R) Core(TM) i7-3770S CPU @ 3.10GHz [Family 6 Model 58 Stepping 9]
1/5/2015 9:34:41 AM | | Processor features: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss htt tm pni ssse3 cx16 sse4_1 sse4_2 popcnt aes f16c rdrandsyscall nx lm avx vmx smx tm2 pbe fsgsbase smep
1/5/2015 9:34:41 AM | | OS: Microsoft Windows 8.1: Core x64 Edition, (06.03.9600.00)
1/5/2015 9:34:41 AM | | Memory: 7.95 GB physical, 15.95 GB virtual
1/5/2015 9:34:41 AM | | Disk: 917.81 GB total, 811.57 GB free
1/5/2015 9:34:41 AM | | Local time is UTC -6 hours
1/5/2015 9:34:41 AM | | VirtualBox version: 4.3.12
1/5/2015 9:34:41 AM | | Config: don't compute while e-Sword.exe is running
1/5/2015 9:34:41 AM | | Can't delete previous state file; Access is denied. (0x5)
1/5/2015 9:34:41 AM | | Can't rename current state file to previous state file; Access is denied. (0x5)
1/5/2015 9:34:41 AM | | rename error: Access is denied. (0x5)
1/5/2015 9:34:41 AM | | Couldn't write state file; check directory permissions

I have gotten this error since installing the latest version of BOINC, uninstalling it and reinstalling BOINC client version 7.4.27. I hope you can help with this.

Thanks,
James F.

Looks to me like you have a permission problem.
try to:
- Uninstall BOINC.
- Open Windows Explorer and navigate to the BOINC data directory, C:\ProgramData\BOINC
- Go back up one directory (so you're in C:\ProgramData\).
- Now copy or move the data directory to elsewhere including all files and folders. E.g. C:\BOINCData\ .. do NOT move it to any of the Program Files directories.
- Delete the old data directory (C:\ProgramData\BOINC).
- Do Start, in the Search bar type cmd.exe (do Not press Enter yet), when Windows has found cmd.exe right-click on it, and choose Run as administrator, acknowledge (Yes).

In the command line window type chkdsk c: /F /R and press Enter.
This will probably ask if it's OK to do that the next time you reboot, so acknowledge and then do Start->Reboot.

Upon reboot, do NOT press any key on the countdown... just wait it out until the check starts. Depending on the hard drive size, this can take quite a bit of time.

- When it's done and you're back in Windows, move the data directory back to C:\ProgramData\BOINC\ (or if you like to keep it in the other space, is OK as well).
- Download BOINC 7.4.36 (it's the new recommended).
- Install BOINC, and when you leave the data directory in the other place, in the third screen of the installer click Advanced, then change the path of the Data directory to where you put it, continue the installation.

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Thanks, Jord :

I did as you suggested and the problem seems to be solved. Thanks for the help.

James F.

Yay! You're welcome. Probably a bit of local corruption. May I ask, what did you decide in the end, leave the data directory in the new place or move it back to its old place?

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I left it in the new place, a portable drive. Everything seems to be working fine now. Thanks again. James F.