Eli Posted February 11, 2009 Share Posted February 11, 2009 Hi I have the following registry key reported as unused file extension: HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.pf A moment before that ,I uninstalled Google Earth, does it have anything to do with this ? If it is some thing else, what is it? Thanks OS : MS windows XP pro sp3 Processor : AMD Athlon 64x2 Dual core 3800, 2009Mhz.Mother board : Gygabyte M61 PM-S2 Ram : 3GBDisk space : 649.05 GB Default browser: FirefoxProtection : Sandboxie, MBam free version Link to comment Share on other sites More sharing options...
Moderators hazelnut Posted February 11, 2009 Moderators Share Posted February 11, 2009 Could be prefetch files . Support contact https://support.ccleaner.com/s/contact-form?language=en_US&form=general or support@ccleaner.com Link to comment Share on other sites More sharing options...
Eli Posted February 11, 2009 Author Share Posted February 11, 2009 Could be prefetch files . Is it ok then to delete? OS : MS windows XP pro sp3 Processor : AMD Athlon 64x2 Dual core 3800, 2009Mhz.Mother board : Gygabyte M61 PM-S2 Ram : 3GBDisk space : 649.05 GB Default browser: FirefoxProtection : Sandboxie, MBam free version Link to comment Share on other sites More sharing options...
Moderators hazelnut Posted February 11, 2009 Moderators Share Posted February 11, 2009 That is your decision really Make a backup of anything you delete when you are unsure. Support contact https://support.ccleaner.com/s/contact-form?language=en_US&form=general or support@ccleaner.com Link to comment Share on other sites More sharing options...
CeeCee Posted February 11, 2009 Share Posted February 11, 2009 It's totally safe to delete it. Shortly; it's just a file extension that has not been registered to open with any application. Path Copy TeraCopy Unlocker Link to comment Share on other sites More sharing options...
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