Another frustrated customer. I've used CCleaner for years, updating regularly without issues. Currently on version 5.57 (free) on Win 10 (64-bit) with the most recent MS-pushed updates. When attempting to upgrade to CCleaner 5.58, the files download fine, when attempting execution get a white screen, nothing happens. I've tried the solutions offered in the prior threads, with the latest official release (5.58.7209). What else to try? NEVER had anything other than straightforward updates before.