This error message may appear when the the main memory (RAM) of the computer is full, and there is no space to execute further memory access requests.
Step 1: Say NO to Companies on Startup
- Go to Gateway of Tally > F12: Configure > Data Configuration
- Set Load companies on startup? to No
- Press Ctrl+A to accept.
Step 2: Increase Virtual Memory
- Right click on My Computer> Properties> Advanced system Setting and then follow the following steps:
b. Untick - Automatically managing paging file size for all drives
c. Select drive in which Tally is installed and then click on System Managed Size- SET
After this try opening your tally and then you won't get this Error again.