Your HP DV9723CL laptop has become unstable and all your attempts to rectify it have failed. You do not want to reinstall original CD’s since you would lose too much. Is it possible to install Windows 7 without losing drivers?
You have also used PC cleaners to no avail. If you haven’t done so already I recommend running a malwarebytes scan, ccleaner cleaning and registry scans. Also, I recommend you run both chkdsk and sfc scans.
You might need to boot into Windows safe mode with networking for ccleaner and malwarebytes. I recomend you download and run a free MalwareBytes scan. Make sure malwarebytes is updated before you begin that scan.
You may need to boot your computer into Windows safe mode with networking. Also, please download and install free CCleaner after running malwarebytes. Use CCleaner for cleaning your PC and registry cleaning.
You may need to run both clean and registry scans more then once. Once you run afore mentioned scans then open a command prompt window and type “chkdsk c: /f /r” without quotes. Type Y at a volume is in use message.
A chkdsk scan will be scheduled so please reboot that computer and a chkdsk scan should begin. After chkdsk is completed you can type “sfc /scannow” in a command prompt window without quotes. Once you have completed all above scans then boot into normal windows mode and see if that improved your computer’s performance.