1. Systemroot is the folder where Windows system files are located. To find systemroot, Start -> Run -> %systemroot% -> OK.

2. To delete a file permanently, click to select the file, press Shift and Del key simultaneously. The file will be deleted permanetly with out going to Recycle bin.

3. To make the text on Web pages larger or smaller, click the View menu, and then click Text Size. Press F5 to refresh the screen.

4. To hide text in a page, change the background colour to that of text colour.