ranone2

Hello, I was prompted this morning to open CCleaner to save arround 4.5Gb of memory space. I was supprise by the "4.5Gb". Nerver had more than maybe 1Gb. One of the items deleted was "old windows versions" containing many files ending by "...BT...". Why would CCleaner suddenly delete so many "old Windows file"? Could this be related to Windows 10 which has been domloaded but not yet installed. Thanks