A abro89 Contributor Joined Jan 14, 2014 Posts 34 Location Brattleboro, VT Mar 6, 2020 #1 hi and hello: Love this forum, the people, the experience, and the methods for troubleshooting (t/s'g). You guys helped me in th epast w/ new CBS files for Win 7E. I purchased (Ebay) a Win 8.1E-64b HD and it shows SFC and DISM errors so decided to reset Windows, keeping all old files and apps. HD functioned OK and all updates installed successful before finding SFC/DISM errors. Proceeded w/ reset, however I left a Win 8.1 64b DVD install/recovery disk in the laptop. Reset started and Windows indicated "cannot find necessary files for reset". It appears some indication that reset has an error or cannot proceed (note: no Win error code observed). Immediately DVD started and reset begins and completes successfully. It appears DVD was used for reset based upon DVD start/start/whirl noise. Here are my question(s): (a) Win RESET in recovery mode should use on-board Win install.wim image .......right? (b) Does Win RESET default to external source(s) when "internal" source is not available? (c) Anyway to ck image on Win recovery DVD vs internal laptop image after reset? (d) Only (2) HD partitions installed: 350Mb (RESERVED), 300GB (OS) if this helps to understand above questions NOTE: initial Win image on HD was virus free, WIN8.1E-64b non-activated, MS Office 2016 installed/activated. Laptop worked nicely (DELL E6400 w/ 4 M RAM). Ebay purchased 300GB HD no SMART errors. Intellectual curiosity caused my decision to Win RESET, perhaps should have completed more t/s and taken an image w/ Clonezilla. My bad!!!! thx...comments, reflections...answers???