Member Avatar for yang22

i used the software CleanMYpc registry cleaner and now i can't open/run any of the programs on our laptop.i can't even open my control pane,my computer and etc.whenever oi open it, it says that the file does not have a program associated with it for performing this action.:(

what should i do?pls help. :((

PS.i saved a backup at my documents,and now its gone..

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ran a registry cleaner and then could not open programs; pointed toward a restore and rightly flagged backups. The fastest, least‑risky fix is to restore the system to a point from before the cleaner ran. If Explorer/Start menu won't launch programs, access System Restore from the Recovery Environment (use your Windows install/recovery media or the built‑in recovery options) and pick a restore point dated before the cleanup.

If System Restore is unavailable or fails, restoring the registry hives from the automatic RegBack copy can often recover default associations. From a Recovery Command Prompt (the Windows RE command prompt), first confirm the Windows drive letter, then check RegBack and back up the current hives before replacing them:

dir C:\Windows\System32\config\RegBack
mkdir C:\hivebackup
copy C:\Windows\System32\config\* C:\hivebackup\
copy C:\Windows\System32\config\RegBack\* C:\Windows\System32\config\

Adjust the drive letter if the Windows folder is not on C:. If the files in RegBack are zero bytes (some modern builds disable RegBack), this method will not work.

If the problem is only broken .exe associations, create a small .reg file on another PC, put it on USB, and import it (merge via regedit or reg import) from Safe Mode or WinRE. A minimal .reg to restore the basic .exe association looks like:

Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\.exe]
@="exefile"
"Content Type"="application/x-msdownload"

[HKEY_CLASSES_ROOT\exefile\shell\open\command]
@="\"%1\" %*"

Cautions: always back up the current registry/hives before replacing anything; restoring hives or importing registry data can leave Windows unbootable if done incorrectly. If unsure, stop and get hands‑on help from a local technician. Finally, check the Recycle Bin and use a full file search for any saved .reg backup before proceeding.

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Member Avatar for cguan_77

have you tried system restore? are you able to run any exe file on your pc? just in case the .exe key on your registry was deleted. check out this site and click on EXE File assocation fix:

why did you decided to run the registry cleaner?

Edited by cguan_77 because: n/a
Member Avatar for maceman

Never run the registry cleaner without backups..

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