Windows 7 forum


Upgrading a viral windows 7 to windows 10

by DaniaL Ha / May 15, 2016 12:48 AM PDT

1.should i install the antivirus and clean the windows and then upgrade it?
2.Does an antivirus clean a laptop?or only protects it?
3.which antivirus is better?
Kaspersky, Bitdefender,norton?
4.Do i need to get a back up from files, for upgrading the windows?
5.Please give me instructions for cleaning the windows 7,getting backup from files,and upgrade the laptop
6.The laptop model is Dell vostro 3400
Can the laptop run windows 10?will it be effective to upgrade it from windows 7 to 10?
thank you very much Happy ,...and sorry for my bad english

Discussion is locked
You are posting a reply to: Upgrading a viral windows 7 to windows 10
The posting of advertisements, profanity, or personal attacks is prohibited. Please refer to our CNET Forums policies for details. All submitted content is subject to our Terms of Use.
Track this discussion and email me when there are updates

If you're asking for technical help, please be sure to include all your system info, including operating system, model number, and any other specifics related to the problem. Also please exercise your best judgment when posting in the forums--revealing personal information such as your e-mail address, telephone number, and address is not recommended.

You are reporting the following post: Upgrading a viral windows 7 to windows 10
This post has been flagged and will be reviewed by our staff. Thank you for helping us maintain CNET's great community.
Sorry, there was a problem flagging this post. Please try again now or at a later time.
If you believe this post is offensive or violates the CNET Forums' Usage policies, you can report it below (this will not automatically remove the post). Once reported, our moderators will be notified and the post will be reviewed.

All Answers

Collapse -
Re: upgrade to Windows 10
by Kees_B Forum moderator / May 15, 2016 3:04 AM PDT

If it's exactly the machine from and Windows 10 is offered by Microsofts GWX software, Windows 10 will work with a comparable performance to Windows 7.
If you want it to work faster (that is, faster than your current Windows 7) the 2 things to consider are: (1) more RAM (go from 2 GB to 4 GB) and (2) replace the hard disk (HDD) by a solid state disk (SSD). Those would speed up Windows 7 as much as Windows 10, so it seems it's not a priority for you, or you would have done it already.

If you now have viruses, my advice is this:
1. Make a backup copy of everything you don't want to lose (data, settings) to a USB-stick, an external hard disk or the cloud. You should have 2 different copies at least. You don't need instructions to copy files, do you?
2. Go back to factory conditions from the recovery partition or the recovery disks you made. Instructions for that are from Dell.
3. Turn off Windows Update.
4. Use a wired connection to Internet or re-enter your WiFi-key. That doesn't survive a factory restore.
5. Go to and either press the button to upgrade, or (if you prefer to have installation media for later use) make a install disk or stick and boot from that to do the upgrade.
6. Install the antivirus of your choice. If the Dell came with a trial copy of some suite, uninstall that first.
7. Reinstall all application programs you installed yourself from the latest (that's better than the original) downloaded install program or from the disk you installed them from the first time.
8. Enjoy Windows 10.

Collapse -
Don't upgrade
by Bob__B / May 15, 2016 8:16 AM PDT
Collapse -
For me I did something like this.
by R. Proffitt Forum moderator / May 15, 2016 9:00 AM PDT

I did this on a 2009 Sony Core2Duo CPU with 4GB RAM. It's faster after the upgrade to W10 but W10 is supported on this laptop. For this one, it's working great and saved the laptop from being gifted away.

Here you don't have that much RAM so iffy if it will better or worse.

Popular Forums
Computer Newbies 10,686 discussions
Computer Help 54,365 discussions
Laptops 21,181 discussions
Networking & Wireless 16,313 discussions
Phones 17,137 discussions
Security 31,287 discussions
TVs & Home Theaters 22,101 discussions
Windows 7 8,164 discussions
Windows 10 2,657 discussions

Does BMW or Volvo do it best?

Pint-size luxury and funky style

Shopping for a new car this weekend? See how the BMW X2 stacks up against the Volvo XC40 in our side-by-side comparison.