Hi nukecad:
You might be correct - at least in part. I reset my Microsoft Defender Firewall on 15-May-2025 to remove my custom blocks for CCleaner64.exe and since then I’ve only seen the large pop-ups that cover most of the CCleaner interface (see the images in my 02-May-2025 post <above>) appear once after a Custom Clean. I’ve been running daily tests, and since that initial appearance of the full pop-ups I’m now seeing that odd “flash” where the entire CCleaner interface briefly turns grey after each Custom Clean that occurs in lieu of the pop-ups (see Jeff_M’s 01-Apr-2025 Screen flashes).
Unfortunately, removing my custom firewall blocks did nothing to decrease frequency of the intermittent pop-ups from my system tray that seem to appear about every third or fourth launch of my CCleaner Free Portable. Here’s today’s latest nag:
For now, my custom blocks for CCleaner64.exe are going back in my firewall, and going forward I’ll only be using CCleaner Free for testing (e.g., running comparative tests with other disk cleaners to see if they are more/less aggressive than CCleaner).
Dell Inspiron 15 5584 * 64-bit Win 10 Pro v22H2 build 19045.5854 * Firefox v138.0.4 * Microsoft Defender v4.18.25030.2-1.1.25040.1 * Malwarebytes Premium v5.3.1.188-133.0.5274 * Macrium Reflect Free v8.0.7783 * CCleaner Free Portable v6.35.11488 * HDCleaner Portable 64-Bit v2.091