cascaderailroad
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A PC shoppe might be able to re-install an OS for a small fee
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Nasty mess.
Try logging in as an administrator and in safe mode and see if that works. Avast is not a great antivirus product and might explain why it came with it, although since the system never had any other updates, it could be the previous owner never updated that either.
Would it be easier to do a fresh install of the system? Using its diagnostic and system partition, should that not have been destroyed, you can easily refresh the system. Sometimes it's easier to use brute force when fighting battles like this one. If needed, you can get the updated drivers and stuff directly from Dell very easily. All you need to do is go to their website under support, put in the Serial Tag number, and it will list all the drivers needed for the system.
John
Can I ask one question if I may? I have never bought a laptop and always built my own desktops, the question is! how do you renew the OS on a laptop if they don't supply you with a disk? or what happens if the hard drive brakes down? do you get a download of the OS from the manufacturer, or do you have to stump up the money for a new OS. which would seam a little too harsh since you already bought one with the computer.
Can I ask one question if I may? I have never bought a laptop and always built my own desktops, the question is! how do you renew the OS on a laptop if they don't supply you with a disk? or what happens if the hard drive brakes down? do you get a download of the OS from the manufacturer, or do you have to stump up the money for a new OS. which would seam a little too harsh since you already bought one with the computer.
Thanks' for the reply's guys; So if I have this correct that means as soon as I buy one the first thing I must do is back up the OS before I do anything at all to the laptop, so as to get a uncluttered OS, saved to either DVD or USB stick.
One problem I can see with that is I will not know if I have done it correctly until I have to use it to restore the laptop.
It all seams like a bad deal and a lot of unwanted trouble to the customer in my eyes. I would sooner have the OS hard wired with something like an eprom chip, where all you had to do was reset the chip with a flick of a switch, and WAHLAAAH! back to factory settings.
Three common methods often there is a separate partition which can be used to restore the laptop. You can always buy a couple of flash drives I think win 8 needs 32 gig ones and create a bootable back up from that. Run Belarc and get the windows serial number then you just need the appropriate set of DVDS ie home premium or professional and dump the serial number in from belarc. Print the belarc out though don't leave it on the drive.
Cheerio John
RE: I actually thought about this some time ago after I de-teenagered a very infected machine.
The OS on an EPROM. I would love to see that too, perhaps just a read-only device so that nothing can write to it unless a special code is entered or multiple keys pressed at the same time to initiate an OS update. This would prevent the data from being trashed. For temporary, or scratch space, this could be placed on a user-accessible drive of some kind. The OS could use this for temporary space and the user could use this for storage. Any malware that happens to be downloaded, would have a difficult time working its way into the operating system. If for some reason things get stuffed, a refresh, again by some set key sequence, could be initiated to bring everything back to factory settings.
When do you want to setup manufacturing for our malware proof systems?
My first 3 computers had the OS in ROM / EPROM.
Well John that's uncanny, after I wrote this , I thought of having a ROM chip for an untouchable OS to draw from, that meant replacing the ROM chip for an all new OS but you can still load upgrades to the EPROM chip. but Your method sounds much better.
What computers were these? There were some small portable devices that had that, but they were limited.
John
My first was a TRS-80 Model 1. Second was an Atari 800. Third was an Atari STE.
I started with a Texas Instruments TI 99/4 closely followed by the TI 99/4A. The A version had a nicer keyboard and, I think, a better version of basic. Back in those days I used to transcribe programs (games) out of books line by line. The TI 99/4(a) came in glorious colour - no B&W for me. Apart from basic, you could also write assember programs. This rather humble beginning led to about 25 years of professional (paid!) software development.
The system wasn't exactly portable. The expansion box, with its very dubious interface cable, included a floppy disk drive (5 1/4"), RS232, parallel output, and some extra memory. The whole thing was powered by 115V (brought in that way from the U.S.) so I had 240/115 stepdown transformers as well. I recall the TI 99/4 cost about $2k all up which a huge amount of money for the time (~1980). See http://en.wikipedia.org/wiki/Texas_Instruments_TI-99/4A
There were quite a few manufacturers around before IBM blew them all away with its PC.
And, yes it played Space Invaders as a plug in cartridge. :hehe:
Cheers
Here's one thing I didn't see mentioned in all of this discussion. Use Apple's Safari browser. I've used Win PC's for years ( my 1995 Dell with Win98 still runs some specialized audio software I use occasionally ). In 2009 I took a leap of faith and bought a little Apple iMac-mini. I've used it for the past 5 years with no problems. I have a small partition for booting Windows XP3. I run Trainz from an external drive thru USB2. As support for XP has ended, and T:ANE just around the corner... I thought it time to get a new PC. Another Dell ( I think this is my 4th ) i5 CPU, 8GB ram, & a bottom end Nvidia video card, ( so I can upgrade as needed ). I downloaded Apples Safari browser for windows, as I am familiar with it and never had any invasions or breaches for the past 5 years. I sometimes use Opera as a browser and haven't had any problems with it either. YMMV, Thanks, Mike
PS: now that I'm back on a windows machine, I see they are still living in the stone age