Cannot Use My Netbook As Flashing Screen At Login Just Hangs

I have a LenovoX121e Netbook, it has no CD/DVD drive. Recently it's been suffering from Pop-Ups, even though in Firefox I had block enabled. Anyway I guesssed it was some malware so ran both AVG Malwarebytes and Super-AntiSpyware, the only find was some PUPS related bugs, which I deleted. The issue however continued, so I then ran a CC registry clean and removed a couple of dubious looking files via Regedit.

I rebooted only to find that having logged in the welcome screen is flashing.

I hit F8 on reboot and trued 'Repair' the flashing issue continued

I then opened via Safe Mode and the same problem there.

Can someone please help as I am reaching the limit of my knowledge and experience and not being able to bot via disk do not know to to solve this. Thanks in advance

Hi, thanks for your kind suggestions, however my netbook has no DVD/CD Drive so cannot do reboot via that method. Also I am unable to get past the 7 Welcome screen. in normal or safe-mode,so cannot run any anti-malware program

strollin said:

Your netbook can most likely boot from USB which means you could use an external dvd drive (here's one for $14 - http://compare.ebay.com/like/251228445488?var=lv<yp=AllFixedPriceItemTypes&var=sbar) or you could create a bootable usb thumb drive from which you could do a repair install. However, you would need another computer to be able to create the thumb drive.

well he can post in this forum that means he may have a working pc

you can try this tool to make bootable usb flash drive its simple
Microsoft Store

of course you'll need iso imago for your windows and key.
use this tutorial to do clean reinstall with usb flash drive.
Clean Reinstall - Factory OEM Windows 7
you may need to set in your bios to boot from usb drive (consult manual for this)