You should not need to run Fdisk and Format and install Windows from scratch if the only problem you are having is you can't seem to install the drivers for the network adapter - if there is nothing actually wrong other than that, you are going to have the same problem again if you can't figure out to install the network adapters properly now.
If you have only one partition on your hard drive and no other hard drives where you can save the drivers you downloaded, you will have to find and download the drivers for the network card again.
Running Windows Setup is quick but it is only the first step - it takes a lot of time to update Windows, install the programs you had on it, get drivers Windows doesn't have built into it that you don't have on floppies or CDs and install them, etc. etc.
Even if there is other things wrong with your Windows, you can often fix things by running an "overtop" Setup - you will not lose what is already on the drive partition Windows is on, but that cannot fix things caused by stuff that isn't on the original CD.
If this network adapter was working before, there is probably no need to open up your case and fiddle with anything.
If this network adapter has never worked for you, or it worked but you moved where it was in the PCI slots and now it doesn't work, or you installed some device such as a card in a slot and now the network adpter doesn't work, there's a small possibility you may need to move the card to another slot - in that case see BELOW below.
If the card was working previously, if you moved the card after that, usually all you need to do is let Win 98SE automatically find the drivers the next time you boot .
Win 98SE doesn't have a lot of network adapter drivers built into it, so you often have to use a disk that came with the adapter to install the drivers for it, or you have to get the drivers for it from the web. When you download a network adapter drivers download it is usually either a self extracting compressed file of some sort with an .exe extension, or it is in a compressed file that does not have an .exe extension that you must open with certain programs, it often has a .zip extension, and the files in it must be extracted with some program that can extract the contents of the file e.g. for a .zip file - WinZip. Win98SE does not come with any program to extract files from a .zip file - you must obtain a program that can do that - it sounds like you already have such a program.
In either case, the extracted files are often specified by default as to the location they will be extracted to, and you should pay attention to what it says that location is - if you missed that, extract the files again and pay attention to where they are extracted to. In the case of a self extracting compressed file, that may be to C:\Windows\Temp, or C:\(the name of the comany that made the adapter), or C:\(the name of the network adapter family), or similar. In the case of extracting from a .zip file, it may default to extracting the files to the same directory the .zip file is in, and it is wise to change that to something else, such as C:\(the model name of the adapter). Wherever the contents of the compressed file goes to, it often extracts everything to be under a directory heading , such as \(some label such as a model number or adapter family).
When you go to where the files have been extracted to, there may or may not be a Setup program. If there is a Setup program, double click on it to run it, select the model of your network adapter if there is a list of several adapters. If there is an Install program, that is usually to install drivers for DOS - don't run it.
If there is no Setup program....
- go to Device Manager (e.g. RIGHT click on My Computer - Properties - Device Manager)
If there is NO Network Adapters category, skip the rest of this and go to the next step.
If there is a Network Adapters category, if there is a listing under Network Adapters - (name of card) with a yellow ! beside it, doubleclick on (name of card), choose Driver, Update Driver - Display a list.... - Have Disk -
Browse to where the contents of the drivers download were extracted to on your hard drive. Windows is looking for an .inf file. If there are subdirectories, the correct .inf file will probably in the \Win98 or \Win9x or \Win98SE subdirectory.
If Windows looks for files on the Win 98SE CD and it can't seem to find them even when you insert the Windows CD, Win 98 and 98SE have this glitch of looking in the wrong place in that circumstance - you must correct the location so that it looks in \Win98, on the correct drive letter of the drive the CD is in, e.g. D:\Win98.
- If there is NO Network Adapters category in Device Manager, or the name of the network adapter you want to install is not listed under the Network Adapters category
- go to Control Panel - Add New Hardware - run it - it should find the network adapter - if it doesn't see BELOW below.
If it finds the network adapter, when it asks for drivers, choose Have Disk -
Browse to where the contents of the drivers download were extracted to on your hard drive. Windows is looking for an .inf file. If there are subdirectories, the correct .inf file will probably in the \Win98 or \Win9x or \Win98SE subdirectory.
If Windows looks for files on the Win 98SE CD and it can't seem to find them even when you insert the Windows CD, Win 98 and 98SE have this glitch of looking in the wrong place in that circumstance - you must correct the location so that it looks in \Win98, on the correct drive letter of the drive the CD is in, e.g. D:\Win98.
.......
BELOW
If no network card is found by Windows....
Has the card ever worked? If it hasn't there's a small possibility it is defective, but there are things you can try before you assume that.
Whenever you fiddle with anything inside your computer case, you must unplug the power to the case or otherwise remove the power to the case (e.g. turn off a switch on the PS or turn off a power bar it is plugged into). ATX PSs are always powering ATX mboards in some places, even when Windows is Shut Down or in Stadby or Hibernate modes.
- try the network card in someone elses computer if you can - there is no need to install any drivers - just see if a new network card is detected while booting.
- make sure the network card is fully seated - parallel to the mboard and all the way down in the slot it is in - if it wasn't, correct that, and temporaily restore the power to the computer, and boot to see if Windows now detects the card while booting.
- if you have spare slots, move the card to another slot. If you don't have spare slots, swap the position that the card and another card are installed in. Avoid using the slot closest to the center of the mboard if you can - that slot is usually forced to use the same IRQ as the onboard video or the video slot if it has a video card in it, and some cards don't get along with sharing their IRQ with the video.
If that stuff doesn't help
- if you aren't using a PS/2 mouse, go into your bios Setup and disable it - that will free up IRQ 12 - some network cards can use IRQ 12.
- if you aren't using one or both Com (serial) ports, go into your bios Setup and disable the Com (serial) ports you aren't using - that will free up one or two IRQ's, usually IRQ 3 and/or 4 - some network cards can use those IRQ's, or some other devices can use those IRQ's and free up the IRQ they were using for other devices such as a network card.
- there is a setting somewhere in the bios Setup - PNP Aware OS (operating system) or similar - if that is set to Yes or Enabled, try setting it to No or Disabled, or visa versa.