Windows 7 cannot startup and goes to blank screen with cursor

[Ikweetniet]

Desktop cannot startup windows 7 home premium 32 bit.
Can only boot from CDdrive and did startup repair / chkdsk / Sfc scan
Hard Drive seems ok.
On reboot, windows logo appears and after 4-5 minutes I get blank screen with cursor arrow even when trying to reboot from safe mode or normal mode.
Have Avast free anti-virus loaded. Could this be the problem?
Pl help. I do not want to lose my files with a clean re-install of Windows 7

 

[Boone031]

blank screens problems are hard to handle Ive had this issue before & it repaired itself a few days later luckily i had more than one desktop. However the main concern is Data loss I would advise that you either move the hard drive to another PC internally or externally if you can. If not reinstall windows without formatting windows will move all of your files to a folder called windows old

 

[ICIT2LOL]

Hello and welcome Ikweet can we have a few more specs?

I am thinking either heat (the most) and maybe try reseating the RAM sticks and video card (if you have one) plus redo plug in and out all leads.

If you can keep it running long enough try Speccy it will give you temps at least it's handy to know the specs because then one can match it against what the temps turn up as.

Speccy - Download < from piriform

and next might be worth checking out the PSU I know it is fairly new but doesn't mean it is infallible

see this but be VERY careful when checking it out DO NOT open it up.
http://www.sevenforums.com/vip/257690-psu-how-test.html#post2130086