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Important information for Windows 7 users

Alex Granovsky
gran@classic.chem.msu.su


Dear Firefly users!

The Firefly/Windows 7 performance degradation saga has been
finally solved - our big thanks to the Microsoft's folks who
cooperated on the investigation of this issue and kindly provided
us by the workaround. The workaround suggested by MS disables
core parking feature of W7 and is as follows:

1. Open command prompt window.
2. At the command prompt, type:


powercfg /setacvalueindex scheme_current sub_processor 0cc5b647-c1df-4637-891a-dec35c318583 100
powercfg /setdcvalueindex scheme_current sub_processor 0cc5b647-c1df-4637-891a-dec35c318583 100
powercfg /setactive scheme_current


This will only work for the current power scheme, and you'll need to update it if you change power scheme.

To simplify things, you can create a batch file containing these commands.

Alternatively, you can replace “scheme_current” with “68a1e95e-13ea-41e1-8011-0c496ca490b0” to modify all power schemes at once.

Regards,
Alex Granovsky


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