4)Blank pages can’t be deleted because of Page Formatting

margins problems
If large margins or spacing causes blank pages, you can make the bottom margin smaller (Layout tab > Margins > Custom Margins, and set the bottom margin to something small, like 0.3 inches).
Section break problems
In the middle of a document, deleting section breaks can cause formatting problems. In these cases, try changing the section break to one that doesn’t generate a new page. Here’s how:
- Double-select the section break.
- On the Layout tab of the Page Setup dialog box, select the Section Start drop-down and select Continuous.
- Select OK.
Odd, Even, and Next cause blank pages
Next Page, Odd Page, and Even Page section breaks may create a blank page in your document. If the blank page occurs at the end of your document and you have a section break, place your cursor directly before the section break and press Delete.
Tip: To more easily find section breaks, try switching to Draft on the View tab.