Hi,
Go to the site for Ultimate Boot CD, read all about it and download.
1. Run the program and make a Boot CD from the ISO.
2. Use that CD to boot your computer.
3. Before you run any other program in UBCD, I recommend that you run a virus scan and malwarebytes to remove all viruses that hide or can not be removed when Windows is running.
An Ultimate Boot CD for Windows is a bootable recovery CD that contains software used for repairing, restoring, or diagnosing almost any computer problem. Use the link below to download a customized ISO file of the Ultimate Boot CD for Windows. A CD-ROM created from this ISO file will be a bootable disk containing a myriad of diagnostics and utilities. The software contained on the Ultimate Boot CD for Windows is either freeware or has been designed "for personal use only". Check the site for all the different software that is included on the CD and if necessary, instructions on how to use that software. Assuming there is no hardware problem with your computer, you will be able to go on-line and update any program or locate other software (drivers etc)
Click here for the official Ultimate Boot CD for Windows website:
http://www.ubcd4win.com/
If you don’t know how to burn a CD with an ISO file, check the site, there are detailed instructions there on using several different burning programs.