tried to update a driver now it says… tried to update a driver now it says parameter is incorrect and idk how to fix it

Made My System Stable I've used it on my Acer desktop which had become very unstable. I was seriously thinking a clean install. No other amount of cleaning and repairing helped. I came across a number of articles about updating drivers to fix problems, something I hardly ever do. So i saw this program mentioned in a newsletter (sorry can't remember which one). Decide to give it a try (SlimDrivers). So far no regrets. If you don't want the cleaner instaalled as well just pay attention to the install screens. Accept the first license don't accept the second)

bad buy purchase driver update $49.00. after filling form my credit card info slim driver pop up.I don't want anything else but one yr. driver update.they never gave me any comfirmation number or chance to use the special coupon @19.95 so please cancel everything but driver update for one year and its not working right right now

is not compatible with other computers otherwise everything is fine I started updating the drivers today but got interrupted and did not finish. Can you help??

Slim Drivers is very slim Beware Be careful they will try to get you to purchase Tech Support by running you around took THREE HOURS TO DOWNLOAD This company's offer of $29.95 turns into $49.95 as you start to order they fill two more charges no way to decline the program slowed my computer down to a crawl that's when another agent tell you that need add tect support this will never be post on there reviews that's how you can tell they are on the shady side they use three different companies I'M SORRY I FELL FOR THERE COME ON AD BLEW $49.95 FOR A VERY SORRY PROGRAM BEWARE