Further I use Windows 10, a quick i7 processor with 4 processors and 8 cores and 16 GB memory. So enough to handle all programs.
Today I made a complete scan over my whole PC (256 GB SSD ("C" partition") ) and two 2TB normal harddiscs with data only. Among others I have stored all installation files of installed applications, also of older versions on this harddisc. Among others I also have some older installation files from Adobe products like Lightroom, Adobe Photoshop Elements and Adobe Premiere Elements. Thes use a lot of cab files.
When I scanned my PC the check of all container files like CAB or ZIP or TAR blocked almost my whole PC. I could almost could do nothing! The fshoster.exe (I assume this does the full scan) had a CPU load of about 5-10%. So peantus. There was also no other process with more than 1-3 % running at this point of time. During the inspection of the container files I could request no single Internet page in Chrome. Partly I couldn't scroll the bars in Chrome for example. My Adobe installtion folders had 72 cab files with a size of 2.76 GB.
I don't know whether verison 16.1. works differnet to version 16.0 whereas I never had such huge (!!!) delays. I have to mention that I used version 16.0 with Windows 7.
Do you know such problems? Anyways also a full scan should never delay a PC like this.
PS: The scan showed no problems on my PC, also the clean-up tool.