Hello,

I have HP ProBook 4720s Win 7 64bit and I have problem because while working on my laptop it suddenly freezes and I can't do anything beside holding shut down button for few seconds to shut down my laptop.
I am not 100% sure but problem could be in Adobe flash player in Firefox because last time it happened, I tried to open some youtube clip in FF and then it freezed.

How can I solve this issue?

Any help is appreciated and many thanks in advance for prmopt replies!

Cheers,
Adnan

Dani AI

Generated

A concise troubleshooting plan to isolate whether the freezes are software- or hardware-related, and to gather useful diagnostics for repair:

Start with software isolation. Boot to Safe Mode (F8 at boot) and run for a while — if freezes stop, the cause is very likely a driver/service or third‑party app. Perform a clean boot (msconfig → disable non‑Microsoft services/startup) and retest. Check Event Viewer (eventvwr.msc) and Reliability Monitor (perfmon /rel) for error entries at the time of the freeze (look for display/driver, disk, or kernel errors). Configure Windows to write small memory dumps (Control Panel → System → Advanced → Startup and Recovery → Settings) so crashes generate data if a BSOD occurs.

Browser/driver/plugin checks next. As noted, playback/Flash can trigger hangs — disable the Flash plugin in Firefox, turn off hardware acceleration (Firefox Options → Advanced → uncheck “Use hardware acceleration when available”) or enable “Click to Play,” and test video in an alternate browser or HTML5 player. Update graphics (both integrated and discrete), chipset and Intel Management Engine drivers from HP/driver vendors; perform a clean GPU driver uninstall if necessary (use a driver-clean tool in Safe Mode). Also consider a clean reinstall of Firefox or trying a fresh user profile to rule out extension conflicts.

If software isolation doesn’t help, run hardware diagnostics. Use Windows Memory Diagnostic (mdsched.exe) or Memtest86+ from USB and run at least one full pass; test RAM sticks individually and in different slots. Check HDD/SSD health with S.M.A.R.T. tools and run chkdsk /r. Monitor temperatures with HWMonitor/Core Temp and run short, careful stress tests (Prime95/FurMark) only to reproduce the fault. Run HP’s built‑in hardware diagnostics or Support Assistant to exercise components.

Safety and next steps. Back up important data before heavy testing (hard shutdowns risk corruption). If a clean OS install + latest BIOS/drivers still freezes, the fault is likely hardware (RAM/GPU/motherboard/HDD) and professional repair is advised. Disabling Bluetooth (as found) or removing recent hardware/drivers is a low‑risk test; for suspected malware follow full offline scans in addition to AV checks (building on ’s point).

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Download Chrome or IE and see if the same thing happens.

run antivirus (avg, avira, avast, etc...), scan for viruses (full scan), then download ccleaner(free), scan for registry problems and recover them and with ccleaner clean your computer.

i have the same problem, i have added ram to 8gb changed the cooling paste on the processor, cleaned vents but it wont resolve the problem, am thinking of changing the cmos battery or even the processor. diabling the blue tooth helps and the frequent freezing. am suspecting a conflict between the bluetooth and the display drivers since it wont hang during installation of windows until when you start installing device drivers.

let me know when you get a solution

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