Solved avast broke my laptop?! please help!

September 4, 2015 at 00:32:46
Specs: Windows 8
I must say I don't know much about computers.
I installed Avast, the free version, just because I realised I don't have an antivirus since I last installed windows 8. Then I realised I installed, with Avast, some 3rd party things I assume, totally my mistake.
Avast asked me to do some checking/updating (?) so it asked to restart my laptop and it'll work before the windows user name appeared. I stared at a black screen with white text "working" for hours!
All good until I open windows, try to uninstall 3rd said parties, I didn't know from where exactly so I uninstalled Avast. Asked me to restart laptop again after uninstalling. Laptop broke. Goes to Automatic problem fix or something like that. I tried troubleshoot and everything else possible from that screen. Can't go into desktop!

So, I'm now thinking to install windows 8 again. My question is, is there any possibility that I won't lose anything on my laptop? I don't even know if I still have partitions and everything, since it won't go to desktop. :(

edit: Or maybe I could install windows over windows, back up my hard drive, wipe clean and install again?

message edited by kate.z

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September 4, 2015 at 01:41:58
Windows 8 (and up) comes with DEFENDER, a basic malware & antivirus program from MS.

If you install windows again without formatting your drive, your data files will be moved to Windows.old. (During install, windows will ask you what to do).

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September 4, 2015 at 03:28:20
✔ Best Answer
Your first concern (naturally) is not to lose any personal files etc. So copy them to DVD at least and check the copies are accessible before proceeding any further after making the copies.

Regardless of how you set about re-instalng windows (and sluc's approach is viable) first safeguard your files as above or below).

If you cannot boot into windows at present, then using another computer - download a free ubuntu ISO and burn it to a DVD. This is Linux based operating system. It will load itself into the RAM only - do not tell it to install itself to the hard drive. Once it boots up, to s typical desktop, you can locate your hard drive, and then copy the files to DVD that way. Again verify the copies are OK. is where to find the ISO (a file you "burn" to a DVD - not simply copy it).

Once your personal files are safely copied to DVD then you can set about rebuilding the system. There are a few options in that regard too... But "first" ensure your files are safe "off" the system as is.

You download the basic Ubuntu desktop version.

Again - before you actually set about re-installing windows - ensure you have copied your files to DVD at least.

You might be able to gain access to your windows system via safe-mode:

This would allow you to access and copy files without using ubuntu.

And this M$ article describes various options that may apply in your current situation.

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September 4, 2015 at 15:25:11
First I would try tapping F8 while rebooting it again and see if you get the Safe Mode option. If you can get into Safe Mode I would then do a System Restore to a date at least a week before you did the last install. If successful this will roll back windows system files and its registry to that date and though the files from the install will probably be on the drive, they will no longer be installed. This includes Avast as well as any other programs that you forgot to uncheck during the install and anything that might have infected the machine a few days prior to that install also. After that install the free version or Malwarebytes (Uncheck the free trial of the pro version or you will not get the free version. Update and run it to check your system for other nasties.
Please to remember to always look carefully on all installers to see those prechecked check boxes that will install other junk along with what you wanted (Adobe and others are big on this, I guess Avast might now be one of them too).

You have to be a little bit crazy to keep you from going insane.

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September 7, 2015 at 11:33:21
I ended up formatting local disk C. fortunately, I don't keep anything personal in C. backed up my data and format again everything. all is good now. thank you for your answers!

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September 26, 2015 at 18:22:31
yea, do not keep anything in c. messy. viruses first go for C, spywares first go for C, so keep C as if it wont matter even if you lose its data. If the best answer would not have been selected, i would have suggested about puppy linux, but well, good to know ur problems solved. and ya, avast uses a LOT of cache. it once crashed my own pc too, now i use malwarebytes.

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