Hi Suruchi,
This is very difficult to say, but once the c: drive is fulled up you will have problems with windows,
If oracle database is located on the C: then oracle will stop and sap will hang.
First check the location of the sap installation
Second you can check the location of oracle by using oracle views V$data_files
sqlplus and execute select name from V$datafile;
If oracle databaseis located on the C: i would suggest you move the oracle database to the new drive (also depends on the database size)
Kind Regards
Marius
please close 1 of the treads as this is a duplicate