New
#11
PC Matic is joke TV crapware. AVG hasn't been favored by techies for about 10 years. What's recommended and works best is in Clean Reinstall - Factory OEM Windows 7 based on countless thousands of installs we've helped with here since before Win7 was still in beta.
You'll use the Product Key on the COA sticker which came in the Win7 Upgrade packaging. When you reinstall boot the installer and it will see an OS on the HD to allow use of Upgrade verison key during install - even though you should then go on to delete all partitions to create New one(s) as shown in Step 7 of Clean Install Windows 7.
If you wipe the HD or use another or new HD and no OS is seen by the installer then leave the Product Key blank during install and after install do the quick workaround in Option 3 of Clean Install with a Upgrade Windows 7 Version to activate Win7 Upgrade on a new or wiped HD.
You do not have Win7 without SP1. These are like a car overhaul: they become the engine.
You don't need to mess with your modem or router at all. Just put your wireless driver in your backup so that if Win7 doesn't provide its driver during install you can install it yourself, connect to your network from bottom-right System Tray connection icon (or rightclick it to run Troubleshooter to find out why not), get online to run all rounds of Important and Optional Windows Updates which will provide almost all other drivers as well as important performance and security updates.
You can also plug in by wire and have a greater likelihood of being online after install, have the wireless driver come in on Updates. About 50% of wireless drivers are in the installer, while about 70% of ethernet drivers are. You'll know if the installer asks you information about your network if it's going to start up connected. Otherwise install the driver yourself first thing to run your Updates. You can set up your desktop while the Updates are running. After required reboots come right back to run Windows Updates again until exhausted.
You can find your wireless driver on the Dell Support Downloads webpage for your tag number, which is where you'll get any drivers still missing in Device Manager after all Updates are done.