See here:

http://dellwindowsreinstallationguide.com/a-clean-install-of-windows/

In particular here:

http://dellwindowsreinstallationguide.com/a-clean-install-of-windows/windows-7-installation/

Use the following drivers here:

http://dellwindowsreinstallationguide.com/driver-sets/inspiron-laptops-windows-7/inspiron-6000-windows-7-32-bit/

All you have to do is when you put the Windows 7 disc into your optical drive or boot from a USB and it starts running, (MAKE SURE YOU HAVE EVERYTHING YOU WANT OFF THE HARD DRIVE SAVED AT THIS POINT THAT IS IMPORTANT TO YOU!!!!), you come to a screen where it shows all the hard drives that the Windows 7 disc can see along with all the partitions in each drive. Just click on the hard drive your installing 7 on and once highlighted all you have to do is delete it. All I do is delete every partition until there is nothing but one hard drive showing. And remember, when a hard drive formats you lose 20% or something close to that. So a 250gb hard drive will show as a 232GB hard drive or a 640GB hard drive will show as 599GB hard drive. Anyways, now that you see your one hard drive your going to use highlight it and click FORMAT. Windows 7 will create a 100mb partition for itself. I usually just click next and skip the format. The reason I do that is because I've never found anything helpful or any use come from the 100mb partition Windows 7 creates. I could be wrong about skipping that but after installing Windows 7 in over 200 systems this way I've never had anyone say anything. Once your done with the format it will show 2 partitions for your hard drive, the 100mb one and whatever's left as your main. Either way just click next and the install will begin. I would also advise to have your system plugged into an Ethernet cable that way Windows 7 can find the drivers you need to run your particular system. But do not think your done once Windows 7 is installed. You need to go to your maker's website and download all of the drivers and other programs that are made for your machine. If you skip the driver part it's very possible your WIFI won't work etc. It's also helpful to go get all those driver's in advance because once in a while Windows 7 will not be able to find the Ethernet driver you need and if it can't find that particular driver or your WIFI driver than you will not have any of the driver's you need to run your system. I have a program I use called driver updater because I do these installs every other day and the program makes it much easier for me than having to download all those drivers from each site. But even with the program I still go to each site and download the software to make that clients machine like it came from the factory. If your only doing this on one machine for yourself I would suggest just using a flash drive and going to your machines website, downloading all the drivers and software onto the flash drive, than after Windows 7 is done installing completely, than slip in your flash drive and start installing each driver. Always install the drivers in the correct order to. Hope this helps!!!

Sorry I forgot to add this part, Now that I see your doing this upgrade on an Inspiron 6000 let me give you some advice. I've done this upgrade on many Dell Inspiron 6000's so pay attention. There will not be any Windows 7 drivers for your model here on the Dell site. They just never released them because your not really supposed to put Windows 7 on a 6000. But you can and it will run great if you do as I say. First, on almost all of the 6000 Win 7 upgrades, I would suggest looking into purchasing a solid state hard drive. Unless you save tons and tons of stuff you don't need a large one and installing this and the ram is so easy my 5 yr old nephew could do it so I'll write the directions idiot proof. You don't have to buy a solid state hard drive, but if you want fast than buy it. Memory upgrade won't make that big of a difference compared to a solid state. 1) Buy a 120GB Kingston SSHD from here- http://www.newegg.com/Product/Product.aspx?Item=N82E16820721107 The price is only $65.00 and if you plan to upgrade your memory to 4GB from what I'm guessing is 1GB or 2GB your going to spend $50 on the memory alone. So if you can only afford one or the other, order this solid state drive. Once installed I can explain to you how to trick your laptop into thinking it is running 4GB of ram memory by just borrowing 3GB of memory from the solid state. (another very nice thing about a solid state) 2) If you want really nice go ahead and order 4GB 2GB X 2 kit - DDR2 PC2 6400 800mhz 2RX8 laptop ram. You can order that from here http://www.ebay.com/itm/New-4GB-2x2GB-DDR2-PC2-6400-800MHz-PC6400S-200Pin-ddr2-800-Laptop-SODIMM-Memory-/161182015368?pt=US_Memory_RAM_&hash=item2587325f88 which is listed right now at only $36 which is a good price. You won't find a cheaper solid state hard drive or laptop ram from any place else in my opinion. 3) Now the part that you probably think is going to be so hard. Replacing the ram and hard drive. LOL This is very easy mam so just pay attention. All you need is a #1 Philips head screw driver along with your new parts. You can easily download the Dell Inspiron 6000 service and maintenance manual for these steps but I'll explain it to you in lamens terms. First and foremost! UNPLUG and TAKE OUT THE BATTERY of the laptop! Next open it back up, press and hold the power on button for 10 seconds to drain any excess electricity in the laptop. Make sure before you unscrew anything that you are working on a flat surface and that you ground all the static electricity out of your clothing on anything metal like the sink. I would suggest wearing just a t shirt and loose pants with rubber shoes. Not a wool sweater! lol If you touch anything inside the laptop with static electricity you can fry the computer. So unplugged and the battery out I'll put the next part into two steps. A: Flip laptop over onto the lid and now that your looking at the bottom with the empty battery bay on the top, if you look down by the right corner you will see where there are two Philips head screws holding in the hard drive caddy. Take out the two screws, don't lose them, and then you can pull out the hard drive. Just pull it out to the right, it can be in there tight so you might need to work it out. Once it's out compare it to your new one. You will see compared to your new one that the old one has a casing / hard drive caddy that the hard drive itself is screwed to with 4 more Philips screws on the edges. Once your remove the 4 screws from the hard drive caddy the old hard drive comes right off. Now just put that same caddy onto your new hard drive, slid it back into the laptop and put the 2 screws back in. Voila! Done with that and you've just brought your laptop to 2014 from it's old school 2004 hard drive. Now the memory, B: Still looking at the bottom of your laptop with the empty battery bay on top you can see right in the middle a cover that has a few Philips screws holding it down. Loosen the Philips screws, they won't come all the way out like on the hard drive, they have clips that hold them to the lid so you don't lose them. Once loos pop off the cover. If it doesn't come right off use something plastic like a credit card to pop it off. Do not use something metal and scratch or scrape something. Once you have the cover off, take a look at the memory you just bought. You should see one or two memory cards similar to your new ones installed in the laptop. Depending on the model you might only have one memory slot altogether but most have two. On the ends of each memory card you can see the metal tab that's holding it in. Carefully push the metal tabs outward at the same time. When you push them both out the memory card will pop up and be sitting at a 45 degree angle. ALWAYS GRAB MEMORY ON THE EDGES, use your pointer finger and thumb and grab along the edges and then wiggle it out. Do this on the other one and then carefully open your new ram, work it out of the packaging, sometimes its easier if you bend the little plastic packages on the edges to get the sticks to pop out of the plastic casing. Once out grab the stick along the edges the same way, slide it into the slot, you can see along the bottom with all the gold pins there will be a slot so the memory will only fit into the laptop one way. Gently push / wiggle the new memory stick into the slot while its on the 45 degree angle. Once you have it all the way in you simply push it down so those metal tabs grab and lock it into place. If you need to get a napkin and gently push the front of the memory down until it locks. Don't be scared, you really have to beat up ram to make it not work. But I always say be safe than sorry. So try to get the memory to lock in one motion. Once you have both memory cards replaced, simply put the lid back on and tighten the Philips screws back down. Make sure the lid is all the way down, push down on an edges that don't go it on the lid if they give you any trouble and they should lock into place. Once your done with this and the hard drive go ahead and put your battery back in, plug in your laptop and when you power it on for the first time press the ESCAPE key instantly! This should bring up your BOOT MENU. At this point when the menu comes up, open up and insert your Windows 7 dvd and then on the boot menu press the arrow key and highlight the option that says OPTICAL DRIVE. Next your laptop will go into boot mode and either start installing Windows 7 or you might get a screen that says press any button to boot from disc, press a button immediately because if you wait more than 4 or 5 seconds it won't work. As soon as you see a black screen that says "press any button to boot from disc" press a button. Now just go through the install process which if you followed my directions and installed the hard drive and memory, it should only take about 10 minutes at the most to install Windows 7 and you will be amazed. Conclusion: Now that you've replaced your decade old hard drive with a new age 2014 solid state hard drive and you've replaced your 1 or 2GB of memory with 4GB, your laptop will be remarkably fast. I do these "refurbishments" for people all the time for $100 + the cost of the memory and hard drive. Your laptop will be faster than any laptop you can go buy brand new that uses a normal hard drive. They still use normal hard drives in 90% of new laptops they sell because solid state hard drives are so much more expensive. You can get a new 500GB normal hard drive for what you paid for that 120GB solid state but what I always tell clients, you can buy a 1 terabyte or 1000GB external hard drive from any brick and mortar store for $60 to save your stuff on if you really use that much space. Otherwise this upgrade will be the best thing you've invested in when it comes to your laptop. One more suggestion would be since your do this upgrade, purchase a $8 can of piano key cleaner, take your laptop out to the garage or outside, and using the can of compressed air, blow the air into and all around at all different angles into the cool air intake on the bottom. Then reverse that and blow the air into the outgoing vent at all different angles. Make sure your battery is out and your laptop is unplugged when doing this. Spend time when doing this and do a really good job. A laptop that's as old as yours probably is clogged up at least a little bit with dust bunnies etc. MAKE SURE that when you do this cleaning with the compressed air you have the vents on the laptop pointed away from you. Don't blow air into the side vents with the laptop upside down so all the dust and stuff blows out the bottom right into your face!! LOL you will not like this! haha! If you need any other help just message and I'll give you my email address! I used dragon talk and type software which is why this so long and detailed so hope it helped!!

The information posted by Jason is useful for a large number of systems such as the Inspiron 6400 but does not apply to this system... The Inspiron 6000 uses the Intel Mobile 915GM Chipset and is reported not to boot with 4 GB of RAM installed. 2 GB is the maximum RAM on this system. The hard drive interface on the Inspiron 6000 is IDE and not SATA therefore it will be harder to upgrade. There are very few IDE SSDs and what there is, is generally of low capacity (32-64 GB) and high price. They are usually not worthwhile upgrading to. Finally the BIOS limits the size of partition size on a hard drive on this system. The limit is 120 GB and its reported that Windows won't be allowed to boot by BIOS if there is a drive partition bigger than 120 GB.

I apologize, I was wrong, you are correct about the 6000 using an IDE hard drive. I've never had any problems running 4GB of ram with that chipset but if it's noted amongst many people that it is a problem a lot of the time, I would go ahead and stick with just the 2GB upgrade http://www.ebay.com/itm/New-2GB-Dell-INSPIRON-6000-6400-9300-9400-DDR2-Memory-/370707334891?pt=US_Memory_RAM_&hash=item564fe106eb. I get the two models the 6000 and the E1505 / 6400 confused because they look identical and a lot of parts are interchangeable. But I've done the same upgrade using IDE solid state hard drives. You can find them online and they aren't that expensive. It's a challenge but not hard to find one that's 60-80GB. If you can live with 60GB - 80GB of space then in my opinion they are easy to find. All the directions I gave, none of them would change except the IDE hard drive in a Dell Inspiron 6000 has pins on the end that connects into the laptop as for a SATA hard drive just has a plug. If you wanted to move ahead with a 2GB upgrade and a 128GB solid state hard drive ($127.00 yeah it's a little more expensive, but well worth it) here's a link to a sample hard drive. http://www.ebay.com/itm/BRAND-NEW-KingSpec-128GB-2-5-SSD-Solid-State-Drive-Hard-Disk-Drive-IDE-PSATA-/301042673347?pt=LH_DefaultDomain_0&hash=item46178aa6c3 If you don't need one that big just remember that after Windows 7 is installed along with the usual software and 100% of all the Windows 7 updates figure at least 40GB of space dedicated to Windows. So the smallest I would go is 64GB. If you were to upgrade to the hard drive I have a link to with a 2GB ram upgrade from 1GB you would be paying roughly $127.00 + $16.45 = $145.50 and don't let anyone tell you different, that upgrade for close to $150 is 100 times more cost efficient than just tossing the laptop and buying a new model. Let me be the first to tell you that your Inspiron 6000 is one of the last few Dell models of laptops where they made them to last and the cooling systems were good. That's why you even have a 12 year old laptop that we are even talking about upgrading. Any other brand of laptop that was sold around the same time isn't worth upgrading. The last thing an Inspiron 6000 could really need is a WIFI card upgrade but if your not having any problems with that don't even worry about it.