Problem:Insufficient Memory To Run.
* If Running Program is Require more Ram space to run.
* Not enough space is virtual space.
* Disk may Full.
* Unknown space occupied for logs.

Solution:
Once check your running Program Requirement are sufficient to your system or not.
If not sufficient to system, So upgrade your hardware immediately and haply run your system.

if your Requirement are satisfied that program so Increase the Virtual Space . now Follow these instructions.
* Right Click on the My Computer Icon.
* Go to System Properties .
* Go to Advance system settings.
* go to Performance region Click on the settings button.
* Go to Advance Tab.
* Click on Customize.
* Increase the Initial Memory Size up to 4gb
Note : Do this Process only for Operating system Local drive.

If your hard disk Drive is Full then This problem may cause. because In The process of program execution System will take hard disk space
To store some information on it. so need to delete the files.
Now temporally stop that application.
* Backup or Delete your personal files
* Delete the Files to these locations.
c:\windows\temp\
c:\windows\prefetch\
Press Win + R and type %temp%

And download and install the Third party system maintenance tools , And Run it.
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Problem : Hard Failures 
Generally Hard ware failure are happen situation are Different . Each situation has particular reaction is their.
Those are represented below.

* Process Failure : If you process is failure it returns these messages.
-- Component Registration is Failed.
-- Critical process Failure.
-- Turner not found.
* Hard disk Drive : at beginning of the boot it will return Disk not found. or system returns " imminent Hard disk error ".
* Ram Failure : System not Run that means BIOS system also not run . Just one beep is coming not coming any thing.
Solution : 
A simple solution is Go to Hard ware Take suggestions from Hard ware engineer.
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Problem : A wanted Programs 
Some unwanted programs are running your system then your are not able to run your system currently.
Now follow these instructions given below.

Solution :
* Maintain a licensed Anti-Virus Programs and with Regular updates.
* Regularly scan with Windows Defender.
* Don't Download and Install Software to system . which software not has been Digital signature.
* Run Valid Applications .
* Delete unnecessary start up objects.
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If your system not reacted above instructions then format your Operating . Then it will return same situation again.
Replace the Hard disk data cable or check Connectivity.

All The best.