Safe Mode is a diagnostic mode which results in Windows only loading those bits that it absolutely needs to run. That is why it won't run networking, and hence you cannot access the Internet. Some hardware devices like cameras may not work either in Safe Mode.
Windows 7 and before:
If not already shut down, shut down your computer. If this is not possible from within Windows, hold the Power-On/Off button for more than 3 seconds until the computer switches off.
Now identify the F8-key. It is located along the top row of keys on your keyboard. Switch on your computer again, and immediately and repeatedly start pressing the F8 key. It is not enough to just press the F8 key one, press it repeatedly. When successful, you will see a black screen with white letters. Along the top of the screen it will say "Advanced Boot Options".
Using the up and down cursor keys, move the white highlight bar to the top of the menu, so that you have highlighted the entry which says "Safe Mode". Now press the Enter key.
Boot normally and at the Windows 8 login screen, simply choose restart and hold down the Shift key. You will arrive at the windows with options to troubleshoot your system from which you can select to boot in Safe Mode. Alternatively:
If you're able to boot Windows normally, but still need to enter Safe mode, you can click on the Start button and type msconfig. Launch System Configuration from the list of search results, then select its Boot tab. You can now check a box to enable Safe boot, with various different types of Safe mode available below. Click Ok, then click Restart to boot your computer into Safe mode.
Windows will now boot into Safe Mode. Enter your password at the log-in screen.
The desktop will appear, but it will be showing a black background with rather large looking icons on your desktop. At the same time a window called "Windows Help and Support" will appear. You can close this window by clicking on the red cross in the top right hand corner of that window.
You can now use your computer to back up your work on memory sticks. What you cannot do is go on-line, use the Internet, or open Word documents (due to licensing issues).
The Reach Recovery disk allows you to reset your computer to the state it was in when we first delivered it to you. Before you procede make sure:
Note: This action is irreversible and completely destructive and should be only attempted once all other methods of repair have been unsuccessful or if instructed by a member of Reach Data Technical Support. This will only work if the Reach RecoveryÂ” is in place and unaltered. This is stored on a recovery partition on the hard drive and normally hidden from access. If the recovery partition or any files in the directory have been touched in any way this will render this process useless and you may be left with an unbootable machine.