|"...recently caught a virus. PC was wiped and restored"|
Most malware these days is NOT a virus - it's something else - a root kit, trojan, etc., etc.
You DO NOT have to re-install Windows from scratch, or re-install the original brand name system software installation, to get rid of malware, for that reason alone.
If you don't know how to get rid of the malware, describe what your symptoms are in as much detail as you can come up with, include the make and model of your brand name system computer, or the make and model of your mboard if you have a generic desktop system, post that info here, and we can probably tell you how to get rid of it.
You must have the drivers for your specific video adapter installed. They're usually NOT built into Windows itself.
"I'm using an old TV type monitor"
If you mean it's a CRT computer monitor - it has a large picture tube - you must select a resolution in Windows that is suitable for the aspect ratio the screen has.
Aspect ratio = the ratio of the width of the screen to the height of the screen in whole numbers.
For most CRT monitors that's 4:3, e.g. 640 x 480, 800 x 600, 1024 x 768, 1280 x 960 - 1.33 (to 1) when you divide the first resolution number by the second one.
For the last few years of CRT monitors, some were wide screen, e.g. 16:9 - 1.77 (to 1) when you divide the first resolution number by the second one. e,g 1024 x 576, 1280 x 720
If you mean you're connecting to an actual TV via a legacy S-Video or composite video (one RCA cable) connection, similar applies - all older TVs have a 4:3 aspect ratio. Fewer resolution choices can be used if it's an actual TV.
If you don't know what the aspect ratio is for your display is, tell us the model number of it. That's on a label on the back of it.
RIGHT click on a blank part of your main desktop screen, choose Properties (goes to Display Properties) , then Settings. Set the resolution there.
It should also say there Plug-n-Play monitor or the specific model of your computer monitor on the name of the specific video adapter. If it says Default Monitor or unknown monitor or similar on the name of your specific video adapter , you won't have as many resolution choices - see below.
Also NOTE that if it's a CRT computer monitor, you may need to adjust any of the width, height, horizontal position, or vertical position of the display on the monitor itself. Once that's been set for a particular resolution you won't need to adjust it again for the same Windows installation, same monitor.
"In addition, at the upper portion of the visible part of the Window, there are several faint horizontal lines which appear."
Sony Trinitron picture tubes, or clones of them, whoever made the monitor or TV, have tiny support wires within the grid the pixels are in. It's normal to see faint horizontal lines because of those wires that are always in the same position. Simply turn down the brightness of the monitor or TV to lessen you noticing them.
If it's an actual TV, if you look at the display really close to the screen you'll probably see the pixels are rectangular, not round.
If it says Default Monitor or unknown monitor or similar on the name of your specific video adapter on the Display Properties - Settings window, or to install specific drivers for your monitor model.......
How to change the monitor drivers used in XP.
See response 9 here:
Scroll down to...
"When you get to the desktop screen , RIGHT click on blank part of the main Desktop....
An alternative is to go to the Microsoft Update web page on the Microsoft web site and do a Custom search. Look at the optional hardware updates. If drivers for your monitor model are listed, select them, and install them. The monitor drivers will be installed in Windows AND Windows will be set to use them. Windows will then by default only show you the settings that both the monitor model and the specific video adapter drivers support.