If you have never done it, a fresh install would probably be a good idea, just make sure you have all the drivers you need before doing it.
Maybe?!! Without know the laptop specs you can't be sure. Do you know if your laptop has an SSD because if it doesn't you'll definitely see performance improvements there.
If you are running into issues where you want to factory reset often you might want to partition your drive into a C and D drive where your D drive holds the data and C drive only runs the OS. That way when you use win10 reset it will just delete the C drive leaving your data on D safe every time.
Not knowing how old the Alienware actually is I wouldn't toss out the idea of putting some money into it for a SSD upgrade. Also you can already pull the SSD out later and use it somewhere else.
An SSD wont really help with video rendering speeds, more just the boot time and application load times,
Thank you so much for all the tips, everyone!
For specs,
Processor: Intel(R) Core(TM) i7-2720QM CPU @ 2.20GHz
Installed RAM: 4.00 GB
System type: 64-bit operating system, x64-based processor
That's for the Alienware, I still need to boot up my old Acer. But, I don't think those specs are all that good either, haha.
Also, I really really think that I need to clean it. I'll probably get one of those compressed air cans and be really careful with it. My fan gets so obnoxiously loud at times, like, if my laptop is running and I'm filming it can't be in the room with me or it will be easily heard on film kind of loud.
Do you know the model number of it? most alienware laptops will have a dedicated graphics card, if it has then you want to make sure that you are using it when rendering out your videos and that should give you much better rendering times.
Excuse my ignorance if I'm wrong (because I actually have no idea). But if she added more ram couldn't she pop that out when this computer dies and put it into the new one?
A ram upgrade would be a huge help in video editing, rendering video uses a lot of ram, the benefit of it being an older system is that DDR3 SODIMM modules are pretty cheap now. For the next upgrade she probably wont be able to re-use the ram, but alienware computers tend to have a good resale value so more memory will make it a more attractive purchase if she decides to sell it to recoup some of the money spent on the new one and could then even upgrade the ram on the new on.
Eg/ My laptop uses DDR3 ram, I have 12gb, when im encoding videos the memory usage usually gets up to around 80%
I would defiantly recommend cleaning it out if it's never been done, if your not comfortable doing it yourself a local pc repair store would probably do it for you pretty cheap, they may even be able to replace the thermal paste on the cpu and gpu as given it's quite old it could probably do with replacing by now.
If you wanted to get as much life out of the current system as possible then I would go for the following:
Upgrade the RAM to 16gb, video editing is ram hungry, you might scrape by with 8gb but DDR3 is cheap enough where 16gb isnt going to brake the bank and it would be a noticeable difference over 8gb. (if your not using the acer laptop, and it's around the same age (+ or - a few years) you might be able to get a free ram upgrade by using the acer for spare parts.
Upgrade to an SSD from the internal hard drive (make sure you get a decent size, the small sizes are cheap but they become a real pain in the ass) and you can always take the drive out if you sell the laptop and put it in an external case or in the new laptop if it's better than whats in there.
Clean the dust out the best way to do this is going to be to pop the bottom off the laptop, and go at it with some compressed air, I would also take the fan out if it's pretty bad in there and clean the fan blades. If you take it to a store to have it done, it would be worth asking them about re applying the thermal paste (it becomes less efficient over time)
Another option you could look at would be optimizing windows, theres a bunch of guides online on how to disable a bunch of un needed windows services that are always running in the background like cortana and xbox game services. (The problem with these is that windows likes to turn them back on with every update meaning it's a constant pain in the ass)
Before making any upgrades though, I would recommend looking at where the issues are, if you load up task manager, click on more details, it will show you the usage % of cpu, ram, hard disk, network and gpu. focus on the numbers that are highest first so given that you only have 4gb of ram I am assuming thats going to be pretty high, so then you install more ram, the usage % should come down, then move on to the next highest used item. (if the highest used item is CPU and you have brought everything else down as far as you can and it's still not running fast enough for you then it's time to upgrade the machine instead of parts)