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#11
CCleaner and IMGBurn are safe. I am unaware of BurnAwareFree though. Just make sure you download from a safe site (unlike CNET for example) and infact filehippo, sourcefourge, or softpedia and you untick all the toolbar addons like others have mentioned.
These may help you make a multi-ISO:
Windows 7 Universal Installation Disc - Create
YUMI - Multiboot USB Creator (Windows) | USB Pen Drive Linux
How To Boot Multiple ISO from USB using Multiboot USB Menu