CCleaner 5.16.5551, Opera 36.0.2130.65 and Adguard 2.2.4 ...

CCleaner for Windows CCleaner Windows Bug Reporting
1

It seems that newest CCleaner with newest Opera with newest Adguard installed,

cleans all Adguard "User Filter" rules, tried both on Win7 32bit and Win10 64 bit.

"Whitelist" rules are not deleted, so that works fine.

Update: Problem goes away when I un-check "Internet Cache" in CCleaner.

Thanks for looking into this!

2

Just an update, 5.17.5590 still has the same issue with Opera + Adguard.

3

Excluding the File System folder for Opera fixes the above issue ...

C:\Users\*USER*\AppData\Roaming\Opera Software\Opera Stable\File System\*.*